Ever wanted to know how to factory reset your T-Mobile G1? Don't worry Android Central has got you covered. Doing a factory reset is a fairly easy process on the G1 and is immensely useful for those returning units, selling units, and/or just want a fresh start.

Here's how it works:

  1. Power off the G1
  2. Hold Home Key + End key for 20 seconds or until you see a "triangle with an exclamation point and a picture of the G1"
  3. Open the QWERTY keyboard and hit Alt+W
  4. Restored!

To do a soft reboot, simply hit the Home+Back buttons when you reach the "triangle with an exclamation point and a picture of the G1" screen.

[Phandroid]

 

Reader comments

How To Factory Reset Your T-Mobile G1

169 Comments

Had the phone for three days. Spent almost 2 hours on the phone with tmobile tech support. I just did a factory reset on it, and I'm in like flynn. Thanks so much!!

On your G1 I am Sure You see the market right? Well I downloaded this app called sim checker or sim locater something like that just browse for it. Anyways this helps for the theif part all you do is download this and if your phone is stolen then when the theif inserts another sim in the phone you will get a text and an email to whatever number or email address you choose. Then You can get online and track your phone its pretty cool. hope this helps.

Doesn't the fact that you can reset a locked G1 create a privacy issue? What if the phone is stolen? Then, the thief has access to private info on the phone, as well as, all the contact info. Why put a pattern lock on the phone if all a thief needs to do is look online to unlock a stolen phone? In addition to that info, the browser uses autofill to automatically give you the option to select something to insert in a text box. Example: What if a thief found out to unlock my phone on the internet, and is using my browser to shop, and it just so happens that the browser autofills the billing info with my credit card #, security code, etc? Again, does this not create a security or privacy issue?

Matt, you seem to be confused about what a Factory Reset is: When you reset a phone all the information stored inside is wiped out. All your private data is deleted. Your phone will be as it was when you bought it.

Almost every phone has the option to do a Factory Reset with some sort of combination of keys.

thanks im in now but when i tried to put in my gmail account and password it says " there is a problem communicating with google servers.""this can be a temporary problem or your sim card may not be provishioned for data services. if it continues call costumer care." before i am stuck on the phone with customer care for hours can you help me one last time.

Thanks. Had the same problem and this solved my problem. However after doing this my maps no longer works. I worked fine before this factory reset.

My brother's G1 phone also have the same gmail lock problem and I did the same factory reset. Now his google map also does not work. Wifi and GPS is on but I cannot detect My Location. Help.

After updating, the device shows that it is on RC30. I am unsure if that is the latest firmware though. How would I check/update to the latest release? Its been 48 hours so far, and no automatic update has been initialized. I've turned on and off the device as well to see if it would trigger anything. Nada. The how to that you have on here to upgrade is to go to RC29. What about 31/32?

OMG. For stupid 15 year olds like me i think someone should mention somewhere wat a factory reset is. just lost everything. Great.

lol, I'm 15 and it was quite obvious, I'm not going to lie.

You can easily get back all your old applications by going to the "My downloads" section of the Market. Just in case anyone was fretting that they had lost all their applications, and didn't write them down. Data stored from applications is another issue, unless the data can be located on your sd card.

For those reading, be careful with your decision. Often times a soft reset will fix bugs and issues like that.

Thanks! I couldn't get Bluetooth to turn on no matter how many times I turned the G1 off and on again, so I figured I'd better try a soft reset, but I haven't had the G1 long enough to know how to do that, so I Googled "G1 reset" and yours was the first entry that appeared.

I need to unlock my phone but I am concerned about losing all of my downloaded apps. Can I avoid this?

hello, i want to know if factory restoring the G1 blocks the phone, since i bought it unlocked it would be great to know...

If I do a hard reset, my T-Mobile which is unlocked, will it be locked to T-Mobile again, or will I still be able to use another sim-card in this? Help will be much much appreciated...

RIGHT LISTEN EVERYONE,I HAD THE SAME SERVER PROBLEM,I BOUGHT THE G1 OFF EBAY AND HAD TO RESET IT,BUT I HAVE MINE UNLOCKED TOO AND I USE ORANGE,I INPUT ORANGE IPNs SETTINGS IN AND IT WORKED A TREAT.T MOBILE IS SHIT END OF...ANYWAYS U CUD TRY THESE SETTINGS EVEN THOU UR ON TMOBILE..THEY ARE

NAME -- ORANGEWAP
APN --- ORANGEWAP
PROXY 192.168.71.35
PORT --8080
USERNAME -- ORANGE
PASSWORD -- MULTIMEDIA
MCC --234
MNC -- 33

THE REST ARE UN SET

WORKS A TREAT SO GUD LUCK.EMAIL ME IF UR HAPPY AND U KNOW IT
GENIUS

I JUST RESET MY G1 AND I'M HAVING ANOTHER PROBLEM; CANT GET IN THE PHONE. IT NEEDS THE LOGIN NAME AND PASSWORD. COULD YOU PLEASE HELP ME TO SOVE THIS

I JUST RESET MY G1 AND I'M HAVING ANOTHER PROBLEM; CANT GET IN THE PHONE. I'M USING SIN FROM ANOTHER CAREER AND I DONT REMEMBER THE PIN. SO I CAN GO PASS THE FIRST REGISTRATION STEP. CAN U GIVE SOME IDEAS, PLEASE?

My g1 froze and when I took off the back there was a few tiny specs of water on the inside. Now it wont turn on. Factory reset or soft reset do not work. Any suggestions from anyone would be very helpful. Thank you.

i just factry restored my phone but when i put in my user name and password which are correct its saying there is a problen communicating with google servers can any one help me

hi all........i love this phone so much.....after taking me some days to unlock it.......i found out that it was the right phone for me.....can someone please tell me how i can download games and videos on it please......and how to download other applications....thanks a lot,.....

ok i have recently factory reset my phone, and i read up on it before i did so. so i knew to look in the "my downloads" to get my apps back, however some of my favorite apps will not re-download, they start to download and then it just says "download unsuccessfull", so i looked for the app on android market and its not there... i really want my app back can anyone help me with this and tell me how to get my app back

i just have a few questions

(1) do you take out your SD Card and your Sim Card before you do a factory reset on your G1 Phone.

(2)how can i get back my paid APP and no paid apps back.

Gotta go make a gmail account to log in with. That's kinda why it's a GOOGLE phone :)

go to gmail.com and make an email. have to be near wifi for it to work if you don't have 3g.

its obvious that this is not working 4 me ,i dnt know why.maybe because my am in gambia.cause i got this phone frm a friend in the u united states and i did the unlocking here but this problem still persist.my phone is asking 4 a username and password which i do not have pls help

I have a g1 that was bought with t-Mobile, I was traveling and wanted the unlock code so they gave it to me now I in the caribbean and I I facroty restored my phone. Even though the phone is unlocked I caoont get back into the phone. It gets up to the screen that says, "signed in please slide back the phone to continue" and it just keep searching on that screen and nothing happens. will I ever be able to get my settings back so I can use my phone on another network?

Ok I found this g1 phone I got everything workiin fine but I was wondering if I reset my phone I'm I locked out. There is a password on market so I couldn't download apps so if I restart it wats goinf to happen

i forgot my phone password in my G1 mobile but i try to reset my cellphone but it didn't work, do you have any options to fix my cellphone?

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Wont work for me, I don't get it, I'm doing it exactly how the instructions say and it wont work.

SOunds like an Insecure Girlfriend trying to catch her man in something while he is away.. bad girl.. if he had anything to hide, do you think he would have left the phone at home?

hi, my boyfriend is out of the country and i havent been able to talk to him for a long time... he said i culd use his g1. but he forgot to tell me his password. so when he called me he just told me to turn off the phonee and press the home+end keys until a yellow triangle appeared and to press alt+ (some key) i dont remember.. he didnt talk for long that time.. and he did not give me his password.. so what can i do to unlock it?? help me please

what if you have a patteren and people try to guess it and so u try ur email and ur password, but you can sing in, what do i do???

my G1 froze and i took the batery off,and when i put the batery on he can't turn on. Not work whit Home + end key.Pls Help

thanks alot! reset worked out perfect! i had a set unlock pattern and my sister maxed out the tries you get and on top of that i couldnt remember the gmail account! this reset worked awesome, i didnt lose any contacts at all just the apps

I have just bought a second hand T-mobile G1 but the person before has put a password in it and i cant access any applications without it. Will a factory reset clear this, then i can put my own in. Please help

I have a G1. It was working for a few days and then it started to update android to 1.5 and that caused my phone to lose service and i couldn't do anything. Technical support wasn't any help so I searched the internet and found this site and thank you very much. I didn't get my 1.5 update but at least my phone is working again. Thanks again.

I am looking to sell my g1 so I called up T-Mobile and got the unlock code and unlocked the phone. I want to wipe out all of my information before I sell it but I don't know if it will reverse the unlocking. Does anyone know? If I do a factory reset on it will it lock me out of the phone? Any advice would be greatly appreciated!

i just have a few questions

(1) do you take out your SD Card and your Sim Card before you do a factory reset on your G1 Phone.

(2)how can i get back my paid APP and no paid apps back.

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i accidently clicked reset factory settings and
i tried to sign into my gmail account but there is a server problem?
what am i supposed to do?

will i loose my apps if I do a factory reset? If that's the case, after a factory reset how can i get back my paid APP and no paid apps back?

here's my problem! i reset my g1 at home! and i do have wi fi.
but after reset the phone it ask me for my gmail and for that ii need internet. My question is... The only way is to active the intenet on the phone or there's another way because i cant do nothing with my celpphone except by an emerqency call .. HELPPPPPPPPPPPPPPP

so my phone shut up and the exclamation mark and g1 phone picture popped up. i clicked alt + l and alt +w to restore my phone and nothing happened. it would shut off and the exclamation mark keeps popping up. what do i do?

thanks im in now but when i tried to put in my gmail account and password it says " there is a problem communicating with google servers.""this can be a temporary problem or your sim card may not be provishioned for data services. if it continues call costumer care." before i am stuck on the phone with customer care for hours can you help me one last time.

I JUST RESET MY G1 AND I'M HAVING ANOTHER PROBLEM; CANT GET IN THE PHONE. I'M USING SIN FROM ANOTHER CAREER AND I DONT REMEMBER THE PIN. SO I CAN GO PASS THE FIRST REGISTRATION STEP. CAN U GIVE SOME IDEAS, PLEASE?

I JUST RESET MY G1 AND I'M HAVING ANOTHER PROBLEM; CANT GET IN THE PHONE. I'M USING SIN FROM ANOTHER CAREER AND I DONT REMEMBER THE PIN. SO I CAN GO PASS THE FIRST REGISTRATION STEP. CAN U GIVE SOME IDEAS, PLEASE?

hi,i have the same problem with my htc g1.can you help me if you have resolve your problem plz i dont no what to do

You wont be able to get into the phone without a data connection... and wifi will not work unless you are already signed in. The phone needs to communicate with the google servers and without a EDGE or 3G connection that wont be poosible. If you like the G1, then you'll probably need to make a quick trip to the states to get it workin on the tmobile network

my daughter was playin with my phone when it was locked ...when i got it it said too many pattern attempts...now im locked out
..i dont know my google account or my password...help me please.....

thanks im in now but when i tried to put in my gmail account and password it says " there is a problem communicating with google servers.""this can be a temporary problem or your sim card may not be provishioned for data services. if it continues call costumer care." before i am stuck on the phone with customer care for hours can you help me one last time.

Sweeet,. MY Phone got locked....on new update and im running AHOME i guess no more ahome for me!!! thank you!

hello .... i reset my g1
but after reset the phone it ask me for my gmail and for that i need internet. My question is... The only way is to active the intenet on the phone or there's another way because i cant do nothing with my cellphone except by an emerqency call .. please reply me soon

If you press the search button and type in settings you can uninstall the open home app without reseting your phone.

If you press the search button and type in settings you can uninstall the open home app without reseting your phone.

had the same problem as a lot of the guys, how do i get past the message
"this can be a temporary problem or your sim card may not be provishioned for data services. if it continues call costumer care."

Did a alt+W to reset the phone, now i can't login to google to register it.

PLEASE HELP GUYS!

oh dear. Seriously i need help i have the same problem as the person on top and others too. so really how do i log on? again? i need to use this phone by next weekend.

is it possibly to get into a g1 that has been disconnected ... because my bill is like 3OO & when i turn on my phone its tell me to sign in the phone with my email & password ... once i do this it tells me there is no data connection where do i go from here ?

this what is get when I reset and then sign in to my google acct.

"You don't have network connection.
______________________________________________________________

This could be temporary problem or your SIM card may not be provisioned for data services. Please try again when you are connected. If it continues, call Customer Care."

what can I do on my own with out have to deal with T-Mobile?

I've tried to put in my gmail account and password it says "there is a problem communicating with google servers." "this can be a temporary problem or your sim card may not be provisioned for data services, if it continues call customer care." I've tried rebooting but with out success. I'm in afganistan and use the phone down range to communcate with the wife who's in Italy. We both use "Vodafone" or "3" sim cards. We just recently switched to the T mobile. What can be done? Are the current sim cards compatible? Do they need to be updated or something? What's up with this phone? I'm in dire straights of not being able to talk to the wife. Please help if you can! Nothing I've done works..

i am haveing the same problem and i cant get passed the gmail thinggg please please please help.

I forgot My Gmail username and password is there a way for me to use my G1 without that. can i create a neew Email account. and when i tryed to do that it give me a error saying "This could be temporary problem or your SIM card may not be provisioned for data services. Please try again when you are connected. If it continues, call Customer Care." i have tryed everyint thing i can think of doing and gaave up

please help!!

hello i just bought a G1 from my friend but he forgot his password and email address so i cant do anything but make emergency calls is there anything i can do to unlock it? i need an answer as soon as possible please. thanks.

Help!!! my g1 had been working fabulously for months as a prepaid, whenever i wanted internet, i just went on wifi..... anywho, in an attempt to reset my pattern, i stupidly entered it wrong...(more than 5 times).... so i did the factory reset thinking the unlocking(code obtained from tmobile cc)would remain intact.... it didn't and now i cant even get to the screen that asks for the unocking code, please help...im so distraught!

hi i would like to know how to reset my g1 i do not have a sim card because i bought it from some1 but my problem is i locked my selfout and i dont know that persons information what do i do

Guys

I'm going to get crazy, please help me.

I did a factory reset on my HTC Dream G1, and now after I restarted the mobile it requests a gmail account. Our operator do not have internet accasess.

Can you please anyone tell me how to pass away this message and to start my phone?

please heeeeeelp.

r,

HI, Girlfriend was trying to guess my password and locked my phone out. I dont know the passwork to my email account to unlock it. Been onto googlemail to unlock it but dont know my security question. Is there anyway to unlock the phone without restoring it to facrory settings??
Thanks Simon

mines would not let me in it keeps sayn idk have a internet connection what should i do

mines would not let me in it keeps sayn idk have a internet connection what should i do

so i just bought this G1 from my friend and it wasn't workin properly so i did the reset and now i cant get into my phone....i dont have data usage on there because i dont want the internet on my phone...can anyone help to get around this....and tell me What APN is it keeps popping up....i know the problem can be fixed without the internet having to go on my phone...PLEASE HELP

I am really unhappy with my G1 phone, I have had it for less than a year and must have had at least six factory resets already. It then works fine for a while until some day it won't boot up after having run out of battery and having been recharged, and only a factory reset fixes it, till next time.

Michael

I was trying to reset my phone without using my power button because it dosent work. There has got to be another way you can reset without having to use that key. If anybody knows how please email me I would really appreciate that thanks.

Do you lose all your contacts? If so how do you download contacts to the computer.. Also what is a soft reboot

I just bought a LG Eve from rogers. I set up another google account when first started my phone, is there any way i can change it?
Does anyone know how to factory reset a LG Eve, it's also Android.

I reset my T-Mobile G1 but i have a problem with id and password because i dont have internet access on my phobe.

I reset it and it comes up with the HTC like it is going to turn on with the sound and it keeps repeating itself over and over? How do I fix that?

Doesnt work. tryed it copule of times, holded the home button for 2 mins and no triangle no nothing. Is there any other way to reset G1 ?

For people with username and password issue >>> Get SIM card from Tmobile (coz Tmobile G1 is set to tmobile internet connection) capable to access internet. Create gmail account (at deskop computer) when its all done and gmail account fully created then place the tmobile SIM card to phone turn it on, set ur username and password, after u get to the screen as its posted upper of this article (black G1) turn it off and place ur own SIM card.
Thats how i done it when i bought my G1

Ok im an idiot, its working if u press home+power on/off button, not just home button alone :D

thank you for the help. my boyfriend locked up my phone because he was being too curious and now i lost everything. but thank you for the help

i download CyanogenMod-4.2.7 to my rooted g1 and after it was done it began to reboot and now it wont go past the g1 screen and i've tried everything any advice?

My G1 randomly lost signal & keeps telling me im not registered to a network. I called tmobile..they have no idea what theyre doing. Can i leave my sim card in my phone to do the factory reset? & if i do will i lose everything? Has anyone ever just lost signal & reset it & have it work again?

My G1 randomly lost signal & keeps telling me im not registered to a network. I called tmobile..they have no idea what theyre doing. Can i leave my sim card in my phone to do the factory reset? & if i do will i lose everything? Has anyone ever just lost signal & reset it & have it work again?

just found a t-mobile g1 htc. It's got a pattern lock. I can't go beyond this. Please help......please!!!!!!!!!!!!!!!!!!!!!

the amount of time i ave had 2 do the reset, plz dont put the patten code in 2 many times. wen it goes 2 the screen which says, put the google email address an password in it dont work you will ave 2 rest it

i get this fone a friend in united state,after attempting too much pattern lock..the fone was asking me for username and password on gmail account.i only know the the username(sabimoore@gmail.com),i dont know the password.now i try to create another account,is telling me the my sim is not connet to server..am using mtn sim card.am from nigeria..this fone is killing me.i need help....

my g1 turns on to the black and white g1 screen, but when I try to reset it, the screen does not change at all. Can anyone help me?

pleaseeeee help....locked my cell.did a factory reset now cant get user name and password to work....contact cust care.i even tried to create a new gmail and dat dsnt work either.any input could help thanks and aloha

wow thanxs alot. This is my third G1 and all of a sudden the phone would not power all the way on after the Android logo appeared. It would just sit idle with nothing on the screen. I was so irritated bc i wasnt ready to purchase yet another phone and bsides i like the G1. The hard factory reset reall worked. Lifesaver thanks!

Dude! It worked but it deleted all my apps /: ohh welll it worked! good stufff

hahaha i tried resetting it 'cause i didnt know what to do after the home+end buttton >.<

so i turned my phone off and once i turned it back on the triangle to the exclamation point popped up.
i've tried everyythhing, like re-booting it, just about everything it says on the internet, and it still doesnt go away.. help?

Thank you so much i was so mad n bored the whole day at school, thanks for the help, which there was a easier way tho cus now i have 2 add all numbs and apps back :(

I just traded for a G1 and did the hard reset. Wish I had not though, should of done a soft to start out. Anyway, I do have data on my plan but it says it is not recognizing the data plan and cannot connect to my gmail account. How do I fix this so I can use my phone?? Any help would be greatly appreciated.

I took the battery out of my g1 and after that it would show the g1 screen and the android screen but that's it. I put it into a drawer and left it alone a few months ago but then I had a thought about a reset button and was led to your page. I did the reset and poof it was back on line nothing had ever happened. Thanks!!!!! This site rulz!!!!!!!!!!!!!!

Hi.
I reset my G1 and now I cant access it unless I have internet connection. But the problam is my internet have to have a key or pin to get into it. So what do I do? Because I really need my phone.

Thanks.

How is it that you can do a hard reset if the home button doesn't work? My home button doesn't work so I can't come up with the screen that I am suppose to get. Any Ideas? Thanks

hi,i need help please.i have the same problem with my htc g1.i do a hard reset now he tell me to sign in on google account.i dont have internet connection to sign in.can you help me please

Hi new user here. I bought a T-mobile G1 off of craigslist that was unlocked for use on AT&T who is my carrier. Everything worked fine except you could not send or receive MMS messages. My wife used the phone for a week and decided she liked her Iphone better. I decided to give it a try and thought it would be faster to wipe all her info out and start fresh, bad idea on the reset because now I get the "you dont have a network connection" . I have went into menu -network operators and it searches and finds AT&T and it says i am registered on network but I continually get the same results of no network connection. Anyone with ideas or solutions please help.

Thanks Travis

Ok so I rest my phone and it worked,but now it won't make me go to the main screen or turn the phone off,how do I fix that problem..do I need a sim card to view my home screen?

Ok, so my 9 year old brother tried to get in my phone with the pattern and he tried to many times and he hit the FORGOT PATTERN botton and now i cant log in on my Gmail or go back to do my pattren. Now what? i tried typing in my Gmail log in many times and it wont work. I have messages on there and contacts that arent on my sim. Help me please. :/

My Samsung 3G wallmart and my SD card says not much left. So i went into settings and cleared some stuff and deleted my fone contacts and the ringer doesn't work for incoming calls. How do i make it ring for incoming calls. Thanks Ron

Hi, i entered the wrong unlock pattern on my G1 phone and i cant remember the google username or password i used to setup the phone. anyone know what i can do?

Hi,

if you have troubles with hard reset of your phone, you should check this site http://www.resethard.com

Here you can find detail tutorials how to do that. The site is relatively simple and you can easily find what problems you can fix with hard reset.

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