How To: Unroot the HTC G1 / Dream
I. Before You Begin
1. The only real reason to unroot a phone is to send it in for warranty, otherwise just flash a different custom ROM.
II. Format the SD card
1. On your phone go to Settings > SD Card and Phone Storage
2. Select Unmount SD Card
3. Then select Format SD card
III. Unroot the Phone
1. Download the latest firmware file for your device and the Original SPL and save it to your computer. (if anyone has other .nbh firmware files for Dreams from other countries please post links in the comments and we’ll add them to the post).
2. Plug your phone in via USB cable and mount the sd card so we can transfer files to it.
3. Copy the .nbh file and the SPL update.zip file to the root of the sd card (NOT in any folders, just on the sd card itself).
4. Unplug the phone.
5. Turn off the phone.
6. Turn the phone back on by holding down Home and Power (keep holding it until the recovery screen comes up)
7. In recovery mode we are going flash the update.zip to apply the SPL update.
8. Once it is done, the phone should reboot.
9. Turn off the phone.
10. Turn on the phone by holding down Camera and Power.
11. It should automatically recognize the .nbh file and ask you to push power to begin.
12. Once it is done, push the trackball to restart the phone.
my g1 doesnt go in recovery all it show is a exclamation mark
Mike,
That is recovery mode… it is the original recovery mode. Push Alt L to get the menu to come up.
My phone freezes on the Tmobile G1 logo when I try to enter recovery mode
i have the same problem i dont know how to fix it
e: cannot open /cache rocovery/command
install from sdcard…
finding update package…
opening update package…
verifying update package…
e: no signature (5 files)
e: verification failed
installation aborted.
this is the message i’m receiving when following the instructions to the T
This is the message I’m getting to, and yes, following the instructions to a T. Any resolution?
This is the message I’m getting to, and yes, following the instructions to a T. Any resolution?
did someone ever tell u what to do about this installation aborted
did someone ever tell u what to do about this installation aborted
I tried doing it a couple of times, gave up and moved onto the next step and it worked for me
mt phone freezes on the g1 screen as well and wont allow me to go into recovery mode. ive tried numerous ways but nothing has worked :/
WHEN YOU GET THE ( ! ) PRESS ALT AND L AT THE SAME TIME THEN PRESS ALT AND S AT THE SAME TIME. I HAD THE SAME PROBLEM TOO
I’m having the same issue as Tony
Tony, I just skipped steps 6-9 and went straight to #10 and went straight to doing the update. Did the update and it worked.
i tried doing this and now i cannot get past the google email login. it doesn’t seem to connect to the wireless APN i defined. 🙁
how long will it take for the system to ask for a update??
update.zip installed fine, but
when i enter the rainbow screen to install dreaimg.nbh it says “no image found!”, and reverts to rainbow screen again
when i try to power up normally, it shows startup image and shows a picture of this weird smiling cat, and will not power off (except if battery removed). Although i can enter recovery screen. please help!
and btw i was attempting to unroot clockworkmod and cyanogenmod
how did you fix this?
nvm i fixed it
it wasn’t reading the dreaimg file, but the way i solved was
changing my SD Card
just want to ask how can i format my sd card. i had reset my g1 since then i cant access phone settings…
i dont have data plan as well…1 one thing is that the sd card i use is from my blackberry pearl… need help here guys..tnx..
🙁 If my phone is not activated how can I mount my sd?
My g1 Is Using Clockworkmod Recovery How Can I By Pass this it comes up when i turn my phone on also my bootloader is OLD i need To find an Update please Help
I cant get this serial10 thing off and i have to unplug my battery? Im lost
Just press Call & Menu & Power to restart your phone. You don’t need to pull out your battery!
the download links arent working
I’m unrooting to reroot so that I can maybe get rid of the privileges error on Clockworkmodrecovery, now I’m getting an error message in the unroot can’t open /cache/recovery/command, what do I do from here?
I’m unrooting to reroot so that I can maybe get rid of the privileges error on Clockworkmodrecovery, now I’m getting an error message in the unroot can’t open /cache/recovery/command, what do I do from here?
E:Missing File: system/tts/lang_pico/es-ES_ta.bin
E:Verification failes
Installation aborted
G1 2.2.1
CM 6.1 RC1 2708 Port
New file added to the procedure. Try that one instead.
where is this new file? i just downloaded the two files from the links above and i get “verification failed” as well. :/
after rebooting the first time a HTC sign came out and from them my phone screen is nothing but black. it doesnt turns on . any ideas???
Just like tony asked 2 months ago ! I followed the instruction on my rogers htc dream.
Same thing happened.
Cannot open/cache recovery/command
……..
………
no signature (5 files)
verification failed.
installation aborted.
The top cannot open line is normal, you can ignore that (always says it).
As for the rest, means the file could be corrupt, try to redownload it or Google for the file and try it from a different source.
Perfect , thanx
Very welcome!
Installation Failed
This is the only error I’ve been getting and I have tried a few sd cards as suggested by a few users here. Someone care to help me? I’m following the video as I go and this just isn’t working at all. HELP please? :((
Installation Failed
This is the only error I’ve been getting and I have tried a few sd cards as suggested by a few users here. Someone care to help me? I’m following the video as I go and this just isn’t working at all. HELP please? :((
Never mind, instead of using the trackball as an “OK” use the menu button, that’s what I was doing wrong. So far so good, I will keep updating if I end up in a situation again.
Never mind, instead of using the trackball as an “OK” use the menu button, that’s what I was doing wrong. So far so good, I will keep updating if I end up in a situation again.
i skipped steps 6-9 also and instead up pushing the trckball i pushed the power button and it started the update.
can i update without t mobile simcard
can i update without t mobile simcard
I am stuck in rainbow updated failed. cant root it keeps boot to rainbow over oand over. help!
add the DREAIMG.nbh file nd your good to go
followed directions perfectly. update.zip worked fine, did the reboot into recovery, then power off… After the power back on to the rainbow screen, it doesn’t find the .nbh and just stays there saying “serial 0” i don’t know what else to do… a little help please
my phone is soo messed up now…
when i turn it on it shows up on the rainbow screen somene help please
I just did this and now my phone is at the welcome to tmobile g1 screen and im not able to sign into my google account. How do i pass the activation again?
Format SD First Then Flash Update.zip and then install .nbh
If anyone is having problem with it, well the best thing that I did was to go into recovery mode, then wipe. Select the first option and then run the rest of the instructions. Shouldn’t be a problem after that.
i from singapore can be done to my htc dream thnks
im from singapore, can my set be root? is my set compatible with t-mobile us g1?
This completely bricked my phone. Thanks for nothing. Experienced rooter and followed your directions to a T.
Thanks unlockr! Worked perfectly.
e: cannot open /cache recovery/command
>> in this line.. what should i do.. i don’t know what command is it..
>> HEEEEEEEEEELLLLPPP…
I thank you soo much for this! I followed each step and everything worked out just fine! Thank you again!
I can’t get to the recovery screen. I boot up my G1 while holding the power and home buttons and all I get is the caution symbol and a picture of a phone. Please help!
dude thanks a million this really helped a lot thumbs up heck two thumbs up lol