Do I have to root for AT&T? - Nexus One Q&A, Help & Troubleshooting

Like to try a rom, but read AT&T required rooting in order to flash. Can this be confirmed?

If you mean custom ROMs then yea any custom rom requires root. Doesn't matter if it's at&t or t-mobile

Big_O said:
Like to try a rom, but read AT&T required rooting in order to flash. Can this be confirmed?
Click to expand...
Click to collapse
Are you referring to updating your AT&T to Froyo, if so, you have asked the wrong question and will receive the wrong answer.

Thought that was the case. Read some posts that said TMO didn't need to root for custom roms, but logic says yes. Thanks.

Big_O said:
Thought that was the case. Read some posts that said TMO didn't need to root for custom roms, but logic says yes. Thanks.
Click to expand...
Click to collapse
you are confusing installing froyo, with installing a custom rom

I was going to ask a similar question. From what I understand, to get Froyo (FRF72) on my AT&T N1, I need to first put the TMO ROM on it and then can use the update.zip to FRF50 and then the newly released update.zip for FRF72. To get the orginal TMO ROM on it, do I just need to unlock the bootloader or is root also required?

Related

Froyo for AT&T/Rogers (build EPE54B)

I have been checking the massive froyo thread since it was on page 7 (now its > 120 pages) but still no love for AT&T/Rogers Nexus one.
My phone is unrooted and running stock rom with Firmware on 2.1-update1 and build EPE54B. Can people who have froyo on their at&t nexus one please post a step by step guide?
Should be the same method and file as that used for the T-mobile compatible phones.
id really like this answered too..i dont want to take a risk and brick my N1.. so far all the guides are ERE27..
The update zip as it stands is only for ERE27-FroYo... sorry.
unleashed12 said:
id really like this answered too..i dont want to take a risk and brick my N1.. so far all the guides are ERE27..
Click to expand...
Click to collapse
pjcforpres said:
The update zip as it stands is only for ERE27-FroYo... sorry.
Click to expand...
Click to collapse
That makes no sense.
The guides are ERE27 only because that's the latest Eclair update. You need 2.1 update 1 to be able to jump to Froyo. You guys have the AT&T/Rogers version, which has a newer radio than those of us with the T-mobile compatible versions. If you're on the AT&T version, you already have the most recent update and can simply flash the file everyone's talking about. If it weren't compatible for some reason, the file would not flash and simply give you an error message. So there's no risk here.
I saw many at&t owners have froyo successfully flashed. They flashed to ERE27 first. Does that need rooting?
Thank you for this information.
uansari1 said:
That makes no sense.
The guides are ERE27 only because that's the latest Eclair update. You need 2.1 update 1 to be able to jump to Froyo. You guys have the AT&T/Rogers version, which has a newer radio than those of us with the T-mobile compatible versions. If you're on the AT&T version, you already have the most recent update and can simply flash the file everyone's talking about. If it weren't compatible for some reason, the file would not flash and simply give you an error message. So there's no risk here.
Click to expand...
Click to collapse
Anyone tried this?
uansari1 said:
That makes no sense.
The guides are ERE27 only because that's the latest Eclair update. You need 2.1 update 1 to be able to jump to Froyo. You guys have the AT&T/Rogers version, which has a newer radio than those of us with the T-mobile compatible versions. If you're on the AT&T version, you already have the most recent update and can simply flash the file everyone's talking about. If it weren't compatible for some reason, the file would not flash and simply give you an error message. So there's no risk here.
Click to expand...
Click to collapse
the update file is labeled signed-passion-FRF50-from-ERE27.1e519a24.zip
ATT/Rogers version is running build EPE54B. The update is from ERE27 to FRF50
uansari1 said:
That makes no sense.
The guides are ERE27 only because that's the latest Eclair update. You need 2.1 update 1 to be able to jump to Froyo. You guys have the AT&T/Rogers version, which has a newer radio than those of us with the T-mobile compatible versions. If you're on the AT&T version, you already have the most recent update and can simply flash the file everyone's talking about. If it weren't compatible for some reason, the file would not flash and simply give you an error message. So there's no risk here.
Click to expand...
Click to collapse
I guess the 20 pages of 100% stock AT&T guys not being able to flash this are just morons then.
The update zip only lets you go from ERE27 to FroYo. Those with an "AT&T version" and FroYo had to flash ERE27 first... that also means unlocking the boot loader.
Yup, AT&T/Rogers folks are going to have to wait unless they want to unlock their bootloader, flash to the 27 build and then update to FroYo.
At this point there's no point to unlock the bootloader if you've waited this long already. Keep your warranty and wait a little longer, I'm sure an update for the Rogers build will surface soon.
pjcforpres said:
I guess the 20 pages of 100% stock AT&T guys not being able to flash this are just morons then.
The update zip only lets you go from ERE27 to FroYo. Those with an "AT&T version" and FroYo had to flash ERE27 first... that also means unlocking the boot loader.
Click to expand...
Click to collapse
jasrups said:
Yup, AT&T/Rogers folks are going to have to wait unless they want to unlock their bootloader, flash to the 27 build and then update to FroYo.
At this point there's no point to unlock the bootloader if you've waited this long already. Keep your warranty and wait a little longer, I'm sure an update for the Rogers build will surface soon.
Click to expand...
Click to collapse
That sucks.
Same problem with the european stock shipping ROM (EPF21B).
Can't wait to be able to get Froyo without unlocking.
my bootloader is unlocked..going to go ahead and try to flash pauls rooted version.
jasrups said:
Yup, AT&T/Rogers folks are going to have to wait unless they want to unlock their bootloader, flash to the 27 build and then update to FroYo.
At this point there's no point to unlock the bootloader if you've waited this long already. Keep your warranty and wait a little longer, I'm sure an update for the Rogers build will surface soon.
Click to expand...
Click to collapse
What a bummer! Yeah I have waited this long to preserve my phone's virgini.. I mean warranty so I guess I'll wait longer.
At least its good to know that the build for at&t and rogers is the same!
I have the AT&T N1, and earlier today I flashed and formatted my phone back to new. I now have Froyo and it's working fine.
Kpow said:
I have the AT&T N1, and earlier today I flashed and formatted my phone back to new. I now have Froyo and it's working fine.
Click to expand...
Click to collapse
is your N1 rooted or stock?
MEGABYTEPR said:
is your N1 rooted or stock?
Click to expand...
Click to collapse
Clearly rooted and unlocked bootloader, otherwise he wouldn't have been flashing anything.
thread title misled me.
eric b
I have successfully flashed Froyo on my (AT&T) N1 with this:
http://android.modaco.com/content/g...com/309286/frf50-froyo-pre-rooted-update-zip/
I previously was on CM 5.0.6 with Amon RA Recovery v1.7.0.
I wiped and installed the update, it did flash a new radio. Rebooted and Froyo was waiting for me!
Hope this helps anyone that is not sure.

Build EPF21B to Froyo

Does anyone know how i can get froyo on my phone with the EPF21B build? Could i change to the ERE27 build WITHOUT rooting my phone? Or flash pauls version through the stock recovery image, without voiding my warranty? Thanks for any help
same problem.
my phone is EPE54B
HELP!!!
Gotta root until Google sort it out I'm afraid.
I have ERE36B with locked bootloader. Can I just update or do I need another update file?
You're on an awkward build... I very much doubt there will be an upgrade path for you.
You will most likely need to flash a mainstream PASSIMG.ZIP (AT&T EPE54B or Vodafone EPF21B) and update from that when Google release one.
Rusty! said:
You're on an awkward build... I very much doubt there will be an upgrade path for you.
You will most likely need to flash a mainstream PASSIMG.ZIP (AT&T EPE54B or Vodafone EPF21B) and update from that when Google release one.
Click to expand...
Click to collapse
Edit: Actually, maybe you should listen to him. After clarification it seems that there were un-original roms out in the wild that didn't need an unlocked bootloader. If you updated to that ROM yourself, even without unlocking then you may not see an upgrade at all.
Old post below for continuity's sake.
--------
Don't listen to him. It seems he is telling you that you will need to unlock to upgrade. If you aren't going to unlock yet, just wait, there will be an OTA update for you too, you just have to wait for Google to send it out.
Google will not force you to unlock your phone.
Is there a way to go back to ere27 so i can update now, without unocking?
Dont mind if i have to do a factory reset or something like that
Requiem87 said:
Is there a way to go back to ere27 so i can update now, without unocking?
Dont mind if i have to do a factory reset or something like that
Click to expand...
Click to collapse
EPF21B is the official euro shipping ROM.
You can't change it back to ERE27 without unlocking the phone, period.
If you don't want to unlock, you'll have to wait until Google issues the OTA for the official euro phones.
Clarkster said:
Don't listen to him. It seems he is telling you that you will need to unlock to upgrade. If you aren't going to unlock yet, just wait, there will be an OTA update for you too, you just have to wait for Google to send it out.
Google will not force you to unlock your phone.
Click to expand...
Click to collapse
Thanks for that completely incorrect post.
I am not telling you to unlock, both can be flashed in the same way you flashed ERE36B as they are official released images.
As ERE36B is a release that shouldn't be out in the field, I doubt an update will be made for it.
So, since I am not on Vodafone or AT&T, what should I update to? AT&T EPE54B or Vodafone EPF21B?
There has to be a way to restore the phone to factory state and factory ROM?
Rusty! said:
Thanks for that completely incorrect post.
I am not telling you to unlock, both can be flashed in the same way you flashed ERE36B as they are official released images.
As ERE36B is a release that shouldn't be out in the field, I doubt an update will be made for it.
Click to expand...
Click to collapse
Sorry about that, it seemed to me that you were telling him he would never get an update without unlocking. But he did mention that he was still locked and had that release. I don't know how he got that one, but if he is truly locked wouldn't it make sense that Google knows of the phones out there with that version?
I still don't think it would make sense for Google to not give those phones an update, and to force them to unlock to upgrade.
Am I missing something important here that's really messing up my understanding?
Requiem87 said:
So, since I am not on Vodafone or AT&T, what should I update to? AT&T EPE54B or Vodafone EPF21B?
There has to be a way to restore the phone to factory state and factory ROM?
Click to expand...
Click to collapse
Except that the factory ROM is different from one to another.
Tmobile factory ROM : ERD79 (which can then be updated to ERE27).
ATT factory ROM : not sure but the one before EPE54B
Europe factory ROM : EPF21B.
Clarkster said:
Am I missing something important here that's really messing up my understanding?
Click to expand...
Click to collapse
I think so.
There are certain ROMs that were leaked, these can be installed without unlocking the bootloader as they are release signed. No phone sent out by Google came with ERE36B, you had to install it yourself. There is also no way back to stock ERE27 without unlocking the bootloader.
My reckoning is that as this particluar ROM isn't meant to be in use by the public an upgrade path is unlikely, hence the advice to flash to a 'legitimate' release image (no unlock necessary) which will definitely be upgradable.
Rusty! said:
I think so.
There are certain ROMs that were leaked, these can be installed without unlocking the bootloader as they are release signed. No phone sent out by Google came with ERE36B, you had to install it yourself. There is also no way back to stock ERE27 without unlocking the bootloader.
My reckoning is that as this particluar ROM isn't meant to be in use by the public an upgrade path is unlikely, hence the advice to flash to a 'legitimate' release image (no unlock necessary) which will definitely be upgradable.
Click to expand...
Click to collapse
Thanks for explaining. I'll go edit my original post.
Thanks Rusty. What rom should i update to then? Is there another rom i can downgrade from, or is it generally impossible to go to an older rom with locked bootloader?
Can't go older unfortunately, else it would be a no-brainer.
As for which one, I doubt it matters, but I would expect EPE54B to be the next updated.
cant you just flash pauls prerooted version?
bobdude5 said:
cant you just flash pauls prerooted version?
Click to expand...
Click to collapse
Doesn't work, cancels installation when it doesn't find the right signature.
yeh, tried that, Wont work with locked bootloader. Tried all ERE27 images, renamed to either passimg.zip or update.zip, and same for all frf50.. Only one thing left to do i guess, and that is wait.
Having the Same Problem,
Hi, I have a Nexus One from Vodafone, and have unlocked it, however, I still can't get it to update to Froyo FRF50 so I can then further upgrade it, I am currently on build EPF21B which I think Vodafone have mucked around with, because I have just updated a Friends Nexus Manually with the same file not problems, mine keeps coming up with, first:
Froyo+E:Can't open /cache/recovery/command
Then fails on this:
E:failed to verify whole-file signature
Can any of you kind people out there confirm that there is something slightly odd about the stock Vodafone ROM,
Thanks for your time in this matter, I assure you that it is deeply appreciated
Kind Regards - Ashe

New Nexus One ques about rooting

I am receiving my new N1 Fri. Have been reading about rooting and all, does a new phone come with all the settings to the factory resets? Are there differences between my unlocked AT&T phone and others? If I choose to upgrade to new ROM's are my steps different? Been trying to figure it all out but unsure. Thanks
yes it comes with factory settings if its brand new.
upgrading to new roms won't be any different if you're on AT&T.
Link below is for nexus one in general, carrier doesn't matter.
http://forum.xda-developers.com/showthread.php?t=688000
Makes sense. If I do decide to install a rom I would only have to load the file onto the sd card and install? Are the advantages of the rom's better performance or features?Been spending a lot of time trying to get educated but too many ques.
erikclaw said:
Makes sense. If I do decide to install a rom I would only have to load the file onto the sd card and install? Are the advantages of the rom's better performance or features?Been spending a lot of time trying to get educated but too many ques.
Click to expand...
Click to collapse
better features and access for more customization.
mrandroid said:
Link below is for nexus one in general, carrier doesn't matter.
Saw your post after I replied. So after reading, I wouldn't have to root for the Froyo install? Just the steps you listed? Is the reason for rooting going from one rom to a newer or different one? Or do others have to do that because their phones are locked? Mine is unlocked cause with AT&T.
Click to expand...
Click to collapse
erikclaw said:
mrandroid said:
Link below is for nexus one in general, carrier doesn't matter.
Saw your post after I replied. So after reading, I wouldn't have to root for the Froyo install? Just the steps you listed? Is the reason for rooting going from one rom to a newer or different one? Or do others have to do that because their phones are locked? Mine is unlocked cause with AT&T.
Click to expand...
Click to collapse
all nexus ones are unlocked lol. and yes you do not need root for froyo and there are ways to downgrade to an official 2.1. an unlocked bootloader allows you to run unofficial roms cooked up by people and lets you flash anything you want.
Click to expand...
Click to collapse
mrandroid said:
Link below is for nexus one in general, carrier doesn't matter.
Saw your post after I replied. So after reading, I wouldn't have to root for the Froyo install? Just the steps you listed? Is the reason for rooting going from one rom to a newer or different one? Or do others have to do that because their phones are locked? Mine is unlocked cause with AT&T.
Click to expand...
Click to collapse
you don't need root for froyo but you need the correct zip to flash.
theres one for people with root access and the other is signed by google.
you bought an unlocked phone but your bootloader is still locked.
just make sure you follow the 2 prerequisites first, then follow the instructions on that post. you'll be good to go.
dudebro said:
you don't need root for froyo but you need the correct zip to flash.
theres one for people with root access and the other is signed by google.
you bought an unlocked phone but your bootloader is still locked.[
So I would have to root to make my phone able to run Froyo? Correcting the zip to flash is making it able to run flash? I know it is elementary but not sinking in.
Click to expand...
Click to collapse
dudebro said:
you don't need root for froyo but you need the correct zip to flash.
theres one for people with root access and the other is signed by google.
you bought an unlocked phone but your bootloader is still locked.[
So I would have to root to make my phone able to run Froyo? Correcting the zip to flash is making it able to run flash? I know it is elementary but not sinking in.
Click to expand...
Click to collapse
no, you do not need root to run froyo.
miketlo said:
erikclaw said:
all nexus ones are unlocked lol. and yes you do not need root for froyo and there are ways to downgrade to an official 2.1. an unlocked bootloader allows you to run unofficial roms cooked up by people and lets you flash anything you want.
Click to expand...
Click to collapse
ok, thanks for the info.
Click to expand...
Click to collapse
So basically, Nexus reads and loads roms etc like a computer? For new programs etc sometimes you need to upgrade driver ie zip to flash
dudebro said:
you don't need root for froyo but you need the correct zip to flash.
theres one for people with root access and the other is signed by google.
you bought an unlocked phone but your bootloader is still locked.
Click to expand...
Click to collapse
since I don't have to root then I have root access?
erikclaw said:
since I don't have to root then I have root access?
Click to expand...
Click to collapse
nope... I must be confusing you.
- you do not have root access after flashing froyo
- no you don't need root to flash it
- follow the steps in the thread and you will be fine
You do not have to root to run froyo. There are two flavors of Froyo floating around the net. They are the same OS version, but each can be used on a different setup.
One is a .zip signed by Google that can be flashed on an untouched/stock Nexus One, i.e. a locked bootloader. It's just a simple option selection in the bootloader to enter recovery mode. Recovery is where the updates are flashed.
The other version of Froyo that is out there is one that has root enabled, which is not signed by Google, and can only be flashed using a bootloader that is unlocked. Remember everything is flashed in recovery mode. By unlocking the bootloader you are able to replace the default recovery (which only allows the installation of signed files) with a custom one. The custom recovery allows you to flash unsigned files, many of which have root access.
In short, unlocking a bootloader does not give you root. It simply provides a mechanism by which you can flash an update that has root.
The signed file is only available for the T-Mobile 3G frequency phone thus far. It can still be flashed on an ATT one, but additional steps are required.

[QUESTION] Root FRF91 without touching boot loader

I know the update was a security fix but am looking for a method to root while remaining as completely stock as humanly possible. I've never rooted before and am still completely stock now.
Best case scenario would be to gain root while leaving everything stock, boot loader, recovery, etc.. maybe even try one of them nice roms for the first time (i hear cyrogen is the best and yes I probably misspelled that)
Thanks
Sent from my Nexus One using XDA App
Same question
There's a couple of tutorials about this in another thread.
If I were you i'd follow one of them and also install a custom recovery. Then play around all you like with rooted roms, stock, custom or otherwise. Once you have a custom recovery you can flash anything. The only down side is that you won't be able to install any OTA roms. But to be honest they appear on XDA in a format you can use on custom recovery way way before you ever receive an OTA notification anyway.
Then if you're sure you only want a stock but rooted rom, then install that and then finally flash the stock recovery back.
However if you're sure you don't want a custom recovery and only want root, you can follow the first half of the same tutorials.
I myself have an unlocked bootloader, but if I didnt, I would root, install a custom recovery and never look back. If anything ever happened to my device i'd just flash the stock recovery and stock firmware and send it back.
Ok, thanks!
That's good information but I'm unsure if I want to unlock at the moment. Thanks but I'll wait a little longer to see if a solution comes out that this my needs.
Sent from my Nexus One using XDA App
viper2g1 said:
That's good information but I'm unsure if I want to unlock at the moment. Thanks but I'll wait a little longer to see if a solution comes out that this my needs.
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
No, thats the point. You dont need to unlock to root OR put a custom recovery anymore. See here for example:
http://forum.xda-developers.com/showthread.php?t=710842
So you can root, put on a custom recovery, try different roms and then go back to stock, rooted or not, without unlocking the bootloader at all.
I see what your getting at, that's what I was looking for but wasn't sure it was working for FRF91 the last few posts in that thread indicated an unlocked boot loader last time I looked.
I thought the update was to fix the security hole that allowed that
Sent from my Nexus One using XDA App
I have read a lot of comments on the guide of how root the nexus without unlocking the bootloader and searched in other places but couldn't find an answer to my question...
I've got at&t version nexus unrooted and I updated it to FRF91 OTA.
can I use this guide to root it without unlocking the bootloader?
If I can, how do I do it? some people wrote that I need to use Passimg.zip
but I think It's for T-mo version only because at&t's version doesn't have the erf79 (I hope I wrote it right).
anyway I'm really confused. can someone please explain?
thanks
I've got at&t version nexus unrooted and I updated it to FRF91 OTA.
can I use this guide to root it without unlocking the bootloader?
Click to expand...
Click to collapse
Me too - same question... I didn't see any tuts for rooting FRF91 w/o unlocking the bootloader.
RashaMatt said:
Me too - same question... I didn't see any tuts for rooting FRF91 w/o unlocking the bootloader.
Click to expand...
Click to collapse
they should work in the same way as it did for FRF83 or FRF85B.. you could always try without harm
RashaMatt said:
Me too - same question... I didn't see any tuts for rooting FRF91 w/o unlocking the bootloader.
Click to expand...
Click to collapse
this link: forum.xda-developers.com/showthread.php?t=717870
is a guide of how to downgrade from FRF91 to FRF85 in an unrooted nexus.
that way you can use this tut and root it w/o touchnig the bootloader
EPE76 to frf85B
Hi,
I am back from frf91 ota to EPE76 by applaing passimg.zip. My question is how can I move to frf85B ? I've tried to download universal frf85B, change name to update.zip and go to recovery, but I only see exclemation mark. Please advise. Thank you.

[Q] Gingerbread 2.3 OTA Manual install?

OK so I downloaded OTA_Vivo_Gingerbread_S_HTC_WWE_2.12.405.7-1.36.405.1_release_1877251m0fkulovs00nwzq.zip
From here: http://forum.xda-developers.com/showthread.php?t=1063062
Now is it safe to do a manual install by going into recovery?
My Incredible S is S-ON from Bell stock ROM.
Please let me know! Thanks!
Couldn't wait... tried it
Got an error saying "Invalid Operation" and automatically reboots.
Damnit!
Rename to pb32img.zip (or pg see downgrade guide in dev) and than boot to hboot, could do the trick. If that doesn't work you have to install by the ruu and perhaps a goldcard.
Greets
Help me understand what this ROM is.
What I am assuming is that this is an official unbranded/unmodified ROM directly from HTC with no carrier modifications. That means it has no carrier-specific apps? I would imagine this is the best ROM to install for those with unlocked devices or who wish to be rid of any carrier bloatware?
Who gets this update over-the-air? Did they purchase a factory unlocked Incredible S directly from HTC?
I've seen a lot of people asking, but have yet to see an answer posted. Has anybody succeeded in installing the WWE OTA update on an S-On Bell IS? Is a goldcard required? Also, is there a radio difference between Bell IS and European IS, since they use different bands? And lastly, if so, does it cause any noticeable issues?
I'd like to try it, but was wondering if anybody else had first!
I tried could not on bell
Sent from my HTC Incredible S using XDA App
Yeah I have a Bell Incredible S that I unlocked to use on MTS... so what could Bell have done exactly that would prevent goldcards from working?
hi i also have an IS on the bell network as well. however my phone is unlocked and i am currently using it on rogers so im guessing i'll never get the udate. and i have no other option rather than to manually intall it. so i would also like to try this, at least to see if it will work on my device. im just wandering how to go about in doing this. if you could give me a step by step instruction, i would appreciate it. let me know if i need tools like a gold card or something as such. thank you.
dejisk8er said:
hi i also have an IS on the bell network as well. however my phone is unlocked and i am currently using it on rogers so im guessing i'll never get the udate. and i have no other option rather than to manually intall it. so i would also like to try this, at least to see if it will work on my device. im just wandering how to go about in doing this. if you could give me a step by step instruction, i would appreciate it. let me know if i need tools like a gold card or something as such. thank you.
Click to expand...
Click to collapse
All the information is in thread in the Android development section. Just look it up!

Categories

Resources