[Q] Can I flash back to rooted after LG update and lost root? - T-Mobile LG G2x

So I want to flash back to a rooted Rom. Is this possible after the new update from LG has been applied?

Yes. You'll keep the new baseband version too.

Just to make sure I'm understanding correctly, are you saying that the steps I could do from a currently rooted CM7 phone:
1. Nandroid restore to original
2. Run LG update
3. Install NVFlasher/CWM
4. Restore Current Nandroid
Am I missing something here? Seems like I'd need to start fresh by installing the clean rooted version and installing CM7 after that, finally having to reconfigure my phone. If I can do it the way that's outlined above I'd save a lot of time and not have to redo everything.

Yes missing some steps. Nandroid stock then wipe data/reset, unroot, nvflash stock recovery. Then lg update. Then nvflash cwm, finally flash preroot rom.
You don't wanna know where this was sent from.

Related

[Q] What is best way to get 2.3.3 Update (w/new Baseband) on a 2.2.2 Rooted/ROM G2x

Starting a new thread so people like me can find an easy answer with the title on this thread.
In order to get the new baseband, does the OTA Update from stock ROM have a better chance of success than the LG Update tool?
If so..right now I have Froyo EaglesBlood ROM. Can someone confirm this process so I don't hit a brick wall:
*My current nandroid backup is stock ROM with root permissions*
1. Do Titanium Backup
2. Wipe Data/Cache/Dalvik?
3. Restore nandroid to Stock ROM
4. Do OTA update
5. Reinstall APX driver on Windows? (I don't understand all the problems with bad drivers leading to bricking...is that only with the LG tool?)
6. Reflash ClockworkModRecovery through NVFlash
7. Flash Rooted ROM
8. Boot up/Reboot/Reboot into ClockworkMod
9. Make nandroid & Wipe Data/Cache/Dalvik
10. Flash Custom ROM
11. Restore Titanium Backup stuff
Apologies if this is an improper post/thread in any way. Just looking for some guidance.

[Q] Safe to restore nandroid backed up with fake flash?

I have a kind of complex, quick question. After I rooted stock but before I flashed CM7 on my G2x, I followed the guide on the CM wiki for flashing clockworkmod recovery through ROM Manager and ended up "fake flashing" my phone back to factory settings. However, I made a nandroid backup first and then followed the guide here on XDA for flashing NVFlash using the NVIDIA drivers, and successfully flashed CM7. My question is, I want to go back to stock to upgrade to the OTA with the new baseband and was wondering if it's safe to flash that backup i made with the clockworkmod recovery that fake flashed my phone or if I should just play it safe and download the stock 2.2 rom listed on the guide here?
http://forum.xda-developers.com/showthread.php?t=1088728
Thanks for your help.
I went ahead and flashed the backup in question and it seemed to work. I then reverted everything to stock (ROM, recovery, unroot), tried the LG updater which failed, bricked my phone (stuck on S/W Upgrade), followed the unbrick guide, and successfully got GB OTA running on my phone, so mods can close this thread.

unroot confirmation

hey all, currently have a g2x rooted with cm7, and i've been looking to unroot;
just to make sure i dont do anything stupid, i wanna run this through with you guys:
first i would flash the stock 2.3.3 ota rom for g2x
then use the http://forum.xda-developers.com/showthread.php?t=1056847 (one click nv flasher) to get back to lg stock recovery by clicking 'flash stock recovery' (do i need to dl anything extra for this?)
then im done, correct? if i boot up, ill get all the stock rom and apps and bloatware and etc back right?
thanks!
edit: how do i know which version of clockwork mod i have installed? im not sure if i did the external sd support or not...
You've gone back to a stock ROM, you've gone back to the stock recovery, but you haven't actually unrooted.
Whichever method you used to root, you should be able to use that same method to unroot.
UPDATE:
I was originally under the assumption that your 2.3.3. ROM was rooted. If it is stock you should be fine.
sorry for bump, but i read in tga_gunmans post that ppl should flash a rooted 2.3.3 rom and use superoneclick to unroot...would my method work too?
No your way would not work because the stock OTA by xboarder is rooted. Do what tga_gunman said. Flash the rom, use my unroot zip in CWM (deletes root files) and then flash the stock recovery. Busybox will still be on the phone but nobody should be looking for that.
Unroot zip: http://www.mediafire.com/?2vr7cmgg7qcdn14
Easiest way to confirm if your not rooted would be to install Superuser from the market. It'll tell you if the phone's not rooted.
There is an app on the market called Root Checker which is free. It will tell you if you are rooted or not.
A little extra help for me?
jboxer said:
No your way would not work because the stock OTA by xboarder is rooted. Do what tga_gunman said. Flash the rom, use my unroot zip in CWM (deletes root files) and then flash the stock recovery. Busybox will still be on the phone but nobody should be looking for that.
Unroot zip:
Click to expand...
Click to collapse
Thanks for your help jboxer. Forgive my noob-like understanding of rooting/unrooting terminology. Hopefully you'll be able to understand what I did.
Last night I went ahead with the unrooting process on my G2X which was running Gingerbread & CM7 following this youtube video (can't post link due to noobiness: watch?v=ryGIv8KQVIE), the order that this guy goes in is:
1. Wiping all cache/user data/formatting in CWM recovery
2. Restore to a barebones stock data in CWM recovery
3. Flash to go back to Stock using OneClickRecovery
4. SuperOneClick to unroot phone
What I ended up doing was restoring my phone to the backup that I created on my sd card when first rooting my phone rather than download that zip file in the video description which is a completely fresh start.
However, whenever I flashed to go back to stock using OneClickRecovery, it gave me that total barebones fresh start where I had to completely set up my Android from the first start screen and I lost my backup. Also, when I go to unroot the phone with that zip file, I don't know how to 'install from zip' after I've lost CWM Recovery menu. So, I flashed back to CWM so I could recover my backup from my SD Card again and install the 'unroot.zip' that you linked and it ran alright and I restarted, but I still had 'SuperUser' in my App drawer telling me that I was still rooted.
I ended up calling it good last night after spending two hours on it. I left my phone rooted, with CWM recovery still on my phone, but I at least I had my backup Gingerbread image with no CM7 mod. So, my phone is functional, but I would like to complete this process of unrooting completely.
Could you perhaps give a little guidance and clarity to what I'm missing or not understanding? I'd love to unroot/flash back to stock recovery/remove all evidence of rooting AND keep my recovered backup that I have before I even started rooting my phone.
Thank you so much for all your help, everybody.

[Q] Restore backup to get ICS OTA Update?

Before I go wiping my device again in anticipation of getting the OTA ICS update...
I made a backup of my device when I was on the original Honeycomb build after rooting. I then switched to the Prime ROM. I'm assuming that I can just restore my Honeycomb update, get Root Keeper and install the OTA update. Am I correct, or is there something that will stop me from doing this?
Edit: Also, when restoring a backup using CWM, does it automatically wipe the device before restoring, or does that need to be done manually?
I believe you also need to restore the original recovery. The last time I tried to flash an upgrade on my rooted stock image using CWM, it rebooted after downloading and rejected the (non-stock) recovery. I'm guessing the ICS update will require a reboot into the stock recovery as well.
Spookymonster said:
I believe you also need to restore the original recovery. The last time I tried to flash an upgrade on my rooted stock image using CWM, it rebooted after downloading and rejected the (non-stock) recovery. I'm guessing the ICS update will require a reboot into the stock recovery as well.
Click to expand...
Click to collapse
Indeed, no OTA update when original recovery is not installed.
I looked around a bit and saw how to unroot and restore to stock recovery... is there an easy way to just restore stock recovery? My plan was to restore my stock backup (to get off revolver) and then can go from CWM -> Stock, I just wasn't sure how to do the last part without undoing everything and fully returning to stock/no root.
It's also very possible that Root Keeper will not work since this is a new firmware form the ground up.
chadcspencer said:
It's also very possible that Root Keeper will not work since this is a new firmware form the ground up.
Click to expand...
Click to collapse
OTA Rootkeeper do not work if the system partition is formatted. Which is not the until now. Also people reported OTA rootkeeper worked to get root back after ICS update.
Otherwise use vipermod option 1 to root on ICS.
darkstar107 said:
Before I go wiping my device again in anticipation of getting the OTA ICS update...
I made a backup of my device when I was on the original Honeycomb build after rooting. I then switched to the Prime ROM. I'm assuming that I can just restore my Honeycomb update, get Root Keeper and install the OTA update. Am I correct, or is there something that will stop me from doing this?
Edit: Also, when restoring a backup using CWM, does it automatically wipe the device before restoring, or does that need to be done manually?
Click to expand...
Click to collapse
I just did exactly this. I had a nandroid backup of my original stock honeycomb so I restored the backup (I had some problems with the kernel after restoring from Revolver with some OC kernel, but flashing "plain" Revolver and then restoring the stock rom from the backup did the trick).
After that I made sure that everything is OK - I checked that I'm on the correct pieces of the software, in particular the kernel. All looked fine so I pulled OTA update, but before applying it I had to restore stock recovery. For this I used the stock recovery linked in this thread: http://forum.xda-developers.com/showthread.php?t=1154947 Just downloaded it, placed it on my SD card, rebooted into CWM recovery and flashed it (pleas note - I only downloaded this single file, not needed to download any other files mentioned n the above thread since I already been on rooted stock rom).
After booting the TF again, I made sure that my root is backed up with Supercurio's Root Keeper, then I applied the OTA and after a few minutes I was happy user of ICSed Transformer.
Please note that what worked in my case may not work in yours though. So be careful, think twice, and keep in mind that it's your decision - your risk (and if something goes wrong - your brick )
BTW, all applications, data, etc. are still in place. Root was restored via Root Keeper. Then I downloaded some updates of applications and so far I'm fine.

[Q] cm10 unintall method for htc one v (india-gsm)

i have installed cm10 on htc one v primo-u (india gsm ) and i wish to revert to the original image.
i tried to flash India_1567201recovery_signed.img file but no success.
can someone help me with a procedure how to revert to either 1.56.720 or 2.09.720 image of the phone
romah1 said:
i have installed cm10 on htc one v primo-u (india gsm ) and i wish to revert to the original image.
i tried to flash India_1567201recovery_signed.img file but no success.
can someone help me with a procedure how to revert to either 1.56.720 or 2.09.720 image of the phone
Click to expand...
Click to collapse
How did you try to flash the RUU? You can not flash it like a normal ROM
Also if you are looking for the RUU try HERE
I see what you're trying to do, that won't work...you can't flash a recovery to get to stock because stock phone won't flash from recovery, which is why once you get root the first thing you do is flash a custom recovery. Use the RUU to flash it back to shipped state stock, or if you are trying to keep root and just want to use a different ROM. More clarification on what you are trying to accomplish would be nice.
If you did a Nandroid prior to flashing CM10 I would wipe all partitions except SD and restore the Nandroid, if all you want to do is get CM10 off your phone. Remember Nandroid Backups are your friend do them before flashing anything and save them to your PC if you don't want the SD space taken. Doing this has made flashing pain free and hassle free. If I don't like how my phone is running after a flash I can always get it right back to how it was when I was happy with it. Lastly there was a time when I had a Nandroid backup of a Sense ROM and was on AOSP and wanted to flash back to Sense, well my Backup wouldn't flash. After spending hours raising hell I did a clean install of the ROM booted once, then rebooted into recovery and flashed the Nandroid backup that had the settings I was using (when I was on Sense, it won't restore data and apps used on AOSP)...sorry if its not much help but more details are needed. But you have a starting point.
ItzCrooK2UxD said:
How did you try to flash the RUU? You can not flash it like a normal ROM
Also if you are looking for the RUU try HERE
I see what you're trying to do, that won't work...you can't flash a recovery to get to stock because stock phone won't flash from recovery, which is why once you get root the first thing you do is flash a custom recovery. Use the RUU to flash it back to shipped state stock, or if you are trying to keep root and just want to use a different ROM. More clarification on what you are trying to accomplish would be nice.
If you did a Nandroid prior to flashing CM10 I would wipe all partitions except SD and restore the Nandroid, if all you want to do is get CM10 off your phone. Remember Nandroid Backups are your friend do them before flashing anything and save them to your PC if you don't want the SD space taken. Doing this has made flashing pain free and hassle free. If I don't like how my phone is running after a flash I can always get it right back to how it was when I was happy with it. Lastly there was a time when I had a Nandroid backup of a Sense ROM and was on AOSP and wanted to flash back to Sense, well my Backup wouldn't flash. After spending hours raising hell I did a clean install of the ROM booted once, then rebooted into recovery and flashed the Nandroid backup that had the settings I was using (when I was on Sense, it won't restore data and apps used on AOSP)...sorry if its not much help but more details are needed. But you have a starting point.
Click to expand...
Click to collapse
i have installed CM10 without backing up any image, therefore i cannot restore the orifginal vendor's rom. Nandroid back would have prevented this situation. the second problem is that I couldnt find any RUU for this phone. indeed the link you attached seems to have it bu unfortunately it is in chineese and after pushing all the buttons i couldn't download the file. so my options are
1- to pray that someone will be kind enough to publish it in a manner that it is accessible
2- I have a friend with a simillar phone , can i somehow back up hus rom and restore it in mine ????
thank
romah1

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