[Q] lost recovery after 2.2.1 ota - Nexus One Q&A, Help & Troubleshooting

i had cyanogen custom ROM installed on my nexus i used the ROM option to install stock froyo ROM with superuser, after that I had the stock fr191 ROM then the O.T.A. update hit my phone and since that i lost my recovery I still can access it only by pressing power and volume + but it doesn't give me any option beside flash update.zip is there a way to install recovery without messing the FRG83, 2.2.1 its very good no problems I just want the htc camera with the 720 support. and i also miss the back up restore option, any help?

I used the rageagainstthecage method to gain root and then flashed the recovery with the method described here: http://forum.xda-developers.com/showpost.php?p=7392149&postcount=61

thanks allot but the recovery image in the link is not valid

Read my signature, read the relevant guides, and download the new recovery listed in "Recovery".

Related

Rooting Help

I downloaded the mistakenly flashed android 1.6 recovery image while trying to flash Cyanogen 4.1.999 . And I lost my root . Now I am unable to root my G1 by 1-click rooting process. When I run recovery Flasher, both the i am not able to backup the recovery image and install the new recovery image. Is there any way to root it.
I did a similar thing. You lost your recovery image, yes? I used downgrade-firmware method... DREAIMG.NBH+g1 root in a google search should get you started...or search the forums here sucks you got to start from scratch tho...there may be a way to downgrade to doughnut and try running the 1-click root app to restore a custom recovery image?
That means i need to downgrade to android 1.5 before being able to run Recovery Flasher.
Find a tutorial on the non 1 click root method and reflash a custom recovery image via the rc29 exploit...the power of google is in ur hands or at ur fingertips.
Look through the q&a's there is a pretty straight forward tutorial that gets you back to a rooted state.​
you dont need to reroot your phone. look at the last few posts i made in the cyan 4.1.999 installation support thread in this section. it should get you where you need to go. if you need help, post there or pm me

Stock Recovery

hEY GUYS,
I need your help you guys. I have a
. Rooted Nexus1
. Froyo F50.
. Amon Ra's Recovery.
Now i am trying to update to the FR83 update floating around but it will require the stock recovery so how do i revert back to the stock recovery or is there a repack FR83.zip that i can flash using the custom recovery ???
STill how do i revert back to the stock recovery???
Thanks people.
You all are awesome.
Regards,
Nadeem
I would download paul's frf83. You won't need to use the stock recovery for it. http://android.modaco.com/content/g...-frf83-stock-rooted-deodex-superboot-repacks/
get FRF83 stock rooted + insecure + ChainsDD's Superuser app update zip
----------------------------------------------
to reload the original recovery image:
http://forum.xda-developers.com/showthread.php?t=614850
Download the original shipping image zip. unzip recovery.img to the folder with adb.
Do steps 1-5 and then 12.
Also, this should be in the Q&A forum
Thanks worker 1. Is Paul's frf83 tempered with in anyway ? i was trying to get stock frf83 on my N1 to see what kind of work has been done by google before trying out work of these gifted developers like paul and cyanogen
Not tampered with in any way like new launcher and things like that. Other than what mentioned they are out-of-the-box clean.
I still have my original recovery done with Amon.. Always a tip to have that saved on a hardrive when flashing Roms for the first time.

Plea - Need help. Explain correct way to root FRF91. Noobs want to know!

OK friends, I will pass the favor to others for current information. I've been all over the forums looking for the safest way to root the FRF91. The problem is, the pages with some instructions have dead links to files and missing information about recovery. The stickies are gone or are showing how to root older roms only. The information is partly available in multiple places only. There are people searching and still confused on the correct procedure to root with or without an unlocked bootloader. I for one, am not sure when to use a recovery file or if any is needed. If some veteran or experienced user can finally post accurate and complete instructions on the exact procedure to root the FRF91 rom, others will be eternally grateful.
1) Please explain how to root FRF91 (aware 91 has to be downgraded).
2) If a recovery rom is needed.
3) How to downgrade to an earlier rom for root access.
4) How to upgrade back to FRF91 (or custom rom).
Yes, this question has been asked a number of times and most of these posts are passed over and ignored. People want to know and will keep asking because there are not clear instructions on rooting or recovery for this latest rom.
Thanks for your time.
((A))
1) Wait for [email protected] modaco to update his superboot.
2) Use that.
((B))
1) Flash AmonRA recovery using adb/fastboot.
2) When flash is done, reboot into recovery using fastboot, or pull the battery when it's done being written (but NOT before!!!!) and reboot into recovery with the trackball+power combo. If you boot normally without root, it will overwrite the recovery with the default one.
3) From within AmonRA, flash a rooted ROM using .zip file.
what i did is installed a clean 2.1
Then i just let the OTA do its job.
Installed OTA
downloaded Root Access via LINK
Flashed it in Amon Ra
Done.
If you allready have un-rooted FRF91 just use the link.
Which clean 2.1 are you referring to? Please post a link.
Can I downloaded Root Access via the "LINK" only without downgrading to 2.1 and flash Amon Ra Recovery if FRF91 is already OTA installed?
1) Please explain how to root FRF91 (aware 91 has to be downgraded).
To downgrade to get root:
http://forum.xda-developers.com/showthread.php?t=717870
2) If a recovery rom is needed.
Custom recovery rom is not necessary to root, only to flash custom ROM
3) How to downgrade to an earlier rom for root access.
See #1
4) How to upgrade back to FRF91 (or custom rom).
Go here and pick a rom that based on FRF91 Froyo. Cyanogen Beta is out, as well as Enomther's Official Rom 2.9.2

[Q] How to get back to vanilla from rooted FRF91 with custom recovery?

A couple of months ago I rooted my N1 FRF91 with Universal Androot. Later I flashed psfMod (based on CMW) custom recovery using flash_image recovery.
Now I don't have any use for custom recovery or a rooted device anymore, and want to get back on track to be prepared OTA 2.3.
I have received notifications for 2.2.1 OTA (2-part update), but the device just locks up during the upgrade and gets back to rooted 2.2 after a reboot.
So how do I apply the 2.2.1 update? Could I just flash the original recovery with flash_image (and what file should I get in that case), unroot with androot and just use the OTA? Or is there any better/easier way?
The question feels kinda nooby, but the only guides I find is to get back to shipping conditions (Which I don't want to keep my settings and so on),using fastboot which I can't since my bootloader still is locked or assumed that you are using a custom ROM which I don't.
Thanks for your help!
There is no need to get rid of a custom recovery or root to apply those updates. This has been covered in many threads.
This is what I would do. Use flash_image to flash Amon_RA 1.9.0 recovery. Then download the update (make sure you download the correct one: there is one that is FRG83D from FRF91, which is what you will need if you are running FRF91)and save it to the root of your sdcard. Then boot into recovery, and flash the update. (You will lose root and your custom recovery, but just root again if you want.) That covers part 2 of 2 of the update.
If you want to flash the first part, dowload the HBOOT 0.35 update file (floating around the forums) and place it in the root of your sdcard. Boot into recovery and flash that. You may have problems flashing certain custom recoveries after you flash the 0.35 HBOOT.
Thanks for your reply. If I follow your steps, the 2.3 OTA will work when it eventually comes?
F-Forward said:
Thanks for your reply. If I follow your steps, the 2.3 OTA will work when it eventually comes?
Click to expand...
Click to collapse
If you keep a custom recovery, you will still get the notification, but you will have to manually apply it. If you keep the stock recovery, it should be able to apply it automatically. No word yet on if the newer HBOOT is a requirement for 2.3 or not.

[Q] Samsung Captivate, froyo KB1, recovery 3e, can't flash recovery?

I've successfully rooted my phone thanks to SuperOneClick, but am not able to figure out how to flash the recovery so that I can use ROM Manager.
I have a stock KB1 image, on an I897 Captivate from AT&T. I'm trying to get the recovery image (currently 3e) set so that I can bypass the signature check, which is what I keep running into.
I installed ROM Manager (the free one, at least until pay day) and tried to use that to flash CWM recovery. Every time I boot into recovery, I run into the confounded signature check.
I have a Superuser app installed from the Market, version 3.0.6(40) and su binary ver 2.3.1-ef.
I'm not typically a dunce, since I've been able to install and run a Linux server at home more than once. But this has got me stumped.
Please let me know what additional information I might need to provide to target guidance.
Read this. Please look at stickies and/or use the search function.
On a personal note, don't waste time on Rom Manager. Its trash for SGS line.
I hadn't seen that list previously. I spent 4 hours last night and three hours today reading stickies and stumbling through search results. That guide for fixing recovery might just be the answer I was looking for.
Is there a different "ROM manager" app that you recommend, or just bare-backing it (which I'm not afraid to do, either)?
Don't bother with it. IMO if you like stock froyo, I recommend just flashing Cognition 4.x.x. Based on KB2 stock looking, but tweaked for speed. CWM is easiest achieved by flashing a kernel with it baked in it.
to skip the recovery crap and rooting and everything else....
take phone out of box. (done)
download and run odin3 flashing util 1.8x Odin3v1.85.zip
boot phone into download mode
flash ginberbread bootloaders http://www.multiupload.com/QQ3LFSRBMD
reboot into download mode
flash custom kernel with CWM built-in pick one in dev section. ANY NOT miui/cm7 kernel in dev section.
reboot into recovery (cwm now!!)
mounts / usb/ copy rom to phone (if not on sdcard already can be done any time before)
cwm flash rom.
** cwm2 kernel for eclair/froyo roms & cwm3/4/5 kernel for gingerbread up
If you goal is to flash a new rom then TRusselo is right. Easier to just flash a kernel with CWM.
Rooted via super 1click and was unable to get clockwork recovery to load said it flashed but would only boot default recovery, soft bricked it 3 times then straight busted it getting the forced upload key press thing had to use USB jig to get download then used Odin to repair firmware some how 3g got switched off. Anyone got any ideas on how to switch back on my guess is key pad access but don't know the code amorphous smart apn from market but don't have the phone yet to try it my friend is gonna bring it this weekend just wanted to find out the best way to switch it back on before I get it back because grs gonna be there this time and I don't want to make him nervous or have him think I'm gonba mess up his phone
Sent from my Evo Running CM7
Stop flashing and read the stickies. If you tried using rom manager or update.zip it wont work unless you fix the 3e recovery issue. Its easier to flash a kernel with CWM baked in to it. For example if you are on froyo Cognition 4.x.x (search for it) kernel should work just fine.

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