I've just received a used VZW Razr HD (Maxx) on trade. It's rooted with unlocked bootloader on 4.04 (don't have the build number handy). It is not a developer version of the phone.
I understand I will lose root, but I wish to restore it to factory stock 4.1.2. While I'm not new to Android (also have a GS3 and a Droid Inc.), I am new to Motorola phones.
What's the procedure for flashing this thing to stock, locked bootloader and all? Have a source for the stock ROM? Any help is appreciated.
Matt's util in original android development should work for most common devices. Make sure your phone is the right variant and flash the stock ICS and receive the otas. Or you could use like rsdlite (which is available on the forums) and flash the stock 4.1.2 firmware on. Look for some of the devs other posts to figure it out. (The firmware is also on the forums).
Sent from my DROID RAZR HD using xda app-developers app
Thanks. Does flashing the stock 4.1.2 firmware also restore stock Verizon apps ("bloatware") and any changes made to the bootloader? I presume I can flash this despite changes made to stock apps (missing .apk's, frozen apps, etc.)?
How about returning to stock recovery? What's the procedure there? Can I find the necessary .zip file and flash with Matt's utility?
Related
Is it safe to downgrade from stock jelly bean to stock ICS?
There reason I'm asking is that I wasn't able to get the Jelly Bean OTA to work so I manually flashed the Jelly Bean OTA using Odin. The one I flashed came pre-rooted and pre-loaded with a custom recovery. I want to have a completely untouched stock version of Jelly Bean, something I haven't been able to find here or elsewhere (I would get this by doing an OTA update to Jelly Bean from the stock ICS rom that I flash).
I'm thinking that the reason that I couldn't get the OTA to flash (it gave me an update fail notification every time) was because I wasn't completely stock on the previous ICS version, even though I had unrooted, relocked the bootloader, thawed bloat, etc.
If anyone could answer the first question, and the others I've raised, that would be great.
(I know that it is probably OK, but I wanted to double check since it was a major no-no to downgrade when I had a Droid Razr Maxx).
Yes, you can safely downgrade in order to take the OTAs.
Yes, your past OTA attempt probably failed because you weren't fully stock in some way. There is an error log stored on your phone that you could have checked for the exact cause. As a general note, OTAs require you to be on stock recovery, but not necessarily Unrooted.
You mention that you are unable to find a stock image file for the JellyBean update. This file is readily available here at XDA, and can be downloaded from the following thread:
http://forum.xda-developers.com/showthread.php?t=1974114
Performing only Step 1 from that thread would leave you with a fully stock, unrooted, locked bootloader JellyBean ROM.
I'm on 4.1.2 and rooted. How do I unroot to send my device back to Verizon for a warranty replacement?
(The HD Utility 1.10 4.04 restore does not work from 4.1.2)
plenty of info on this on here if you search first but HERE is a link to help you.
I read a post about using some rsd file and also a file from the hd utility to do a restore using rsd-lite. It's all very confusing to me. On 4.1.1 rooted, all I had to do was the 4.0.4 restore in the HD utility, is was extremely clear and easy.
This 4.1.2 via rsd, not so much.
Every time I download the 4.4.2 update through the phone's menu, it gives me an Error while it is installing and the phone just reboots. I'm guessing it's because the phone is rooted.
What do I do? Phone is a European model if it matters.
I have the same problem.
Any suggestions?
I dont think it makes any difference if its rooted, have u installed a different recovery or kernel? I know u need stock rom, recovery and kernel or it'll bootloop, this happened to me
Sent from my Moto G using XDA Premium 4 mobile app
The solution that I'm aware of...
Hi there, as far as I know, the only way to be able to update the firmware is by unrooting the phone,
flash the stock ROM, install the update, then re-root it. I know it's a hassle, but otherwise you won't be able to unless you use a custom ROM. Hope that helps!
You need the original recovery
Sent from my Moto G
You need stock recovery.
The KitKat installation script also checks each file that it updates. If a file is found to differ from the stock file then the update fails.
So if you are rooted then at least one file is different from stock. Basically you need to unroot or flash stock before you can update.
Unrooting may still not allow you to update if the unroot process leaves any files different from stock. Best bet is to flash stock ROM then update.
Sent from my XT1032 using XDA Premium 4 mobile app
Download voodoo ota root keeper and use that
Will bear the above in mind, thanks.
Hi guys,
I have a rooted xt925, and I'm having some problems to take the update. I've read that rooted phones can't update OTA, so I have removed the root, but I still can't update the phone. I've tried to do it via motorola device manager too, but it says that there's no updates to my phone. I've already searched how to solve this, but I'm very noob
Any suggestions?
Thanks
easiest way is to do a factory reset, keep in mind that will erase all your data then try update . You can also flash the OTA but that involves few more steps. Check
http://forum.xda-developers.com/showthread.php?t=2760840
Because you rooted, that modified the system partition. Removing root might work, but your best bet is to flash an SBF if one exists for the XT925. I don't have an XT925 (I have an XT926), so I have no idea if SBFs exist for XT925.
And before you ask, no. You cannot use and XT926 SBF to flash back to stock.
Oh, I did factory reset two or three times, and ota update continues to fail.
I will try to search more about SBF. And it's possible to flash a kitkat rom without have a kitkat bootloader?
For xt925,you flash European cee 4.1.2 jb, then take the update or flash it itself.
Hey guys, I have a quick question maybe you guys can help me with.
I have a droid Maxx that is exhibiting some issues and I was wondering if I can use RSD lite to flash stock FW to it.
The phone itself is locked and in a stock state. Is it possible to flash stock FW or would I need to unlock the bootloader with something like Sunshine first?
Or would there be another way to flash stock FW not involving RSD?
Thanks