Question about unrooting - Xperia Play General

If I flash r800x ftf with flashtool for verizon does that remove superuser? I am considering relocking bl to update ota.
Also does anyone know of a kernel that can be usef with stock rom/firmware that has cwr and it works. All I have tried is doomkernels and when I reflash to stock it never goes beyond the sony logo.

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[Q] Unrooting or updating

Hi, almost a year ago shortly after I got my S4 I was very eager to root it, so I came here and followed the guides. I successfully flashed the ROM and proceeded to root my phone but still didn't fully understand the process. I've been sitting on the same version of Android (4.2.2) for a while now and cannot update because there was a file I had to back up and rename. This file was the file which launched the updater, and wasn't part of the guide...
Just now I decrypted my phone, re-flashed it with TWRP, did a factory reset and still have a rooted phone with no update file. I fear the risk of bricking it if I proceed with adding ROM's. Is there an easy way to either update my phone, or unroot it? I may have naively made the only backup image the one that was rooted and with no update file. Staying rooted and updating would be prefered but I just have no idea what I'm doing, to be honest :fingers-crossed:
-Take care, Rob
tenthsun said:
Hi, almost a year ago shortly after I got my S4 I was very eager to root it, so I came here and followed the guides. I successfully flashed the ROM and proceeded to root my phone but still didn't fully understand the process. I've been sitting on the same version of Android (4.2.2) for a while now and cannot update because there was a file I had to back up and rename. This file was the file which launched the updater, and wasn't part of the guide...
Just now I decrypted my phone, re-flashed it with TWRP, did a factory reset and still have a rooted phone with no update file. I fear the risk of bricking it if I proceed with adding ROM's. Is there an easy way to either update my phone, or unroot it? I may have naively made the only backup image the one that was rooted and with no update file. Staying rooted and updating would be prefered but I just have no idea what I'm doing, to be honest :fingers-crossed:
-Take care, Rob
Click to expand...
Click to collapse
@tenthsun
Could u tell me what is your firmware from about device .....If u have MDL or MDB then u just install any custom 4.4 Kitkat roms and then flash loki patch. U are pretty lucky to have that firmware. Do Not update using your phone coz u would stuck with locked BL and u won't be able to use loki patch anymore. On the other side if u like to unroot just odin to stock firmware according to your firmware.
☆Swyped From Venomous Droid Blue Chrome Edition☆
ted77usa said:
@tenthsun
Could u tell me what is your firmware from about device .....If u have MDL or MDB then u just install any custom 4.4 Kitkat roms and then flash loki patch. U are pretty lucky to have that firmware. Do Not update using your phone coz u would stuck with locked BL and u won't be able to use loki patch anymore. On the other side if u like to unroot just odin to stock firmware according to your firmware.
☆Swyped From Venomous Droid Blue Chrome Edition☆
Click to expand...
Click to collapse
It seems to be MDL.
Much appreciated and I think i'll try Odin because I want to be able to update officially from Samsung for now.
Thank you

Microphone fault, need to Relock Bootloader on UK Z1C

I need help
I successfully rooted, unlocked the bootloader and installed CM11 on my Z1C, but now I have a hardware fault (microphone sounds terrible) and need to send the phone back to Sony. As far as I know I need to put a PURE STOCK kernel and ROM on my device before locking the bootloader? Does anyone know what I need to do/where to get the PURE STOCK files from? any info would be greatly appreciated.
Use the Sony Companion application to install your region's stock firmware?
Keep in mind that to restore your TA backup you need root. I advise you to upgrade to a rooted stock firmware (and stock kernel), restore TA backup (thus relocking bootloader). After that, flash again a full stock firmware (preferably your stock cust #) and wipe everything.

I337UCUGOC3 bootloader locked, want to update to I337UCUGOK2 to unlock bootloader

I hit on UPDATE on the phone for an OTA update but it only says UNABLE TO CONNECT AT&T SERVER. When I bought it, it had 5.0.1 (I337UCUGOC3) out of the box. Searching on internet says that is bootloader locked (so I cant do anything).
- Can I Update to I337UCUGOK2 and bootloader will be unlocked (I mean, will I be able to do it)?
- Does anyone know where can I grab I337UCUGOK2 for offline install and is it ODIN safe to update it (remember I have I337UCUGOC3 bootloader locked)?
please help
Once the bootloader is locked, it will always be locked until someone finds a way to unlock it. Updating the bootloader will not allow it to be unlocked.
cybercuate said:
I hit on UPDATE on the phone for an OTA update but it only says UNABLE TO CONNECT AT&T SERVER. When I bought it, it had 5.0.1 (I337UCUGOC3) out of the box. Searching on internet says that is bootloader locked (so I cant do anything).
- Can I Update to I337UCUGOK2 and bootloader will be unlocked (I mean, will I be able to do it)?
- Does anyone know where can I grab I337UCUGOK2 for offline install and is it ODIN safe to update it (remember I have I337UCUGOC3 bootloader locked)?
please help
Click to expand...
Click to collapse
Unlocking/exploiting the bootloader for the AT&T is still in process, I think.
Bootloader locked means you can not install custom recovery like TWRP, CWM or custom kernel. You can still root, you can still use odin and you can still install custom rom using either safestrp or flashfire.
Here is the thread explaining how to upgrade stock or rooted stock roms.
The explanation starts from installation of NB1 firmware so that you can easily root the phone by using twolroot.
If you do not care for the root you can start reading from the step 2 "Flash update in stock recovery"
Since you are on OC3, you need OC3 to OC4 and OC4 to OK2 files to get OK2.
help... I want to RMA it
sway8966 said:
Unlocking/exploiting the bootloader for the AT&T is still in process, I think.
Bootloader locked means you can not install custom recovery like TWRP, CWM or custom kernel. You can still root, you can still use odin and you can still install custom rom using either safestrp or flashfire.
Here is the thread explaining how to upgrade stock or rooted stock roms.
The explanation starts from installation of NB1 firmware so that you can easily root the phone by using twolroot.
If you do not care for the root you can start reading from the step 2 "Flash update in stock recovery"
Since you are on OC3, you need OC3 to OC4 and OC4 to OK2 files to get OK2.
Click to expand...
Click to collapse
Everywhere says I need a kitkat rom as base.
My s4 came with 5.0.1 with OC3 and bootloader locked out of the box. I tried some post where says I can flash TWRP and CWM but my phone stucked on bootloops. Then I managed to get back to stock rom and now when I want to turn it on it says " SAMSUNG (and lower on the screen) Custom"
Camera began to fail and I want to return it as RMA but I was looking to reset the flash counter but every post I read is that OC3 bootloader locked users are just doomed.
Do you know a method that I can do for reset that counter?
Camera dont focus anymore and I tried all the posts about safemode, etc.
cybercuate said:
Everywhere says I need a kitkat rom as base.
My s4 came with 5.0.1 with OC3 and bootloader locked out of the box. I tried some post where says I can flash TWRP and CWM but my phone stucked on bootloops. Then I managed to get back to stock rom and now when I want to turn it on it says " SAMSUNG (and lower on the screen) Custom"
Camera began to fail and I want to return it as RMA but I was looking to reset the flash counter but every post I read is that OC3 bootloader locked users are just doomed.
Do you know a method that I can do for reset that counter?
Camera dont focus anymore and I tried all the posts about safemode, etc.
Click to expand...
Click to collapse
Flashing TWRP and CWM is for the AT&T S4 with older bootloader (MDL, MDB). After that two firmware versions the bootloader is locked.
For AT&T S4 the last full firmware released is NB1. After that they released incremental updates via OTA. That is why you need kitkat (NB1) as base.
For NB1, Muniz uploaded two firmwares. One is the stock and the other is rootable stock. Try the stock one and see you still have the custom symbol.
To reset the counter, there is an app calls Triangle away by Chainfire. However, it does not work on AT&T S4 with locked bootloader.
Trying Odin-Stock NB1
sway8966 said:
Unlocking/exploiting the bootloader for the AT&T is still in process, I think.
Bootloader locked means you can not install custom recovery like TWRP, CWM or custom kernel. You can still root, you can still use odin and you can still install custom rom using either safestrp or flashfire.
Here is the thread explaining how to upgrade stock or rooted stock roms.
The explanation starts from installation of NB1 firmware so that you can easily root the phone by using twolroot.
If you do not care for the root you can start reading from the step 2 "Flash update in stock recovery"
Since you are on OC3, you need OC3 to OC4 and OC4 to OK2 files to get OK2.
Click to expand...
Click to collapse
sway8966 said:
Flashing TWRP and CWM is for the AT&T S4 with older bootloader (MDL, MDB). After that two firmware versions the bootloader is locked.
For AT&T S4 the last full firmware released is NB1. After that they released incremental updates via OTA. That is why you need kitkat (NB1) as base.
For NB1, Muniz uploaded two firmwares. One is the stock and the other is rootable stock. Try the stock one and see you still have the custom symbol.
To reset the counter, there is an app calls Triangle away by Chainfire. However, it does not work on AT&T S4 with locked bootloader.
Click to expand...
Click to collapse
Thanks. I'll try Odin it with the stock rom from your link. I'll post news here when it finish flashing
1st part - Success
I'm on 4.4.2 NB1, flash counter back to normal but still bootloader locked
Now I have to go back to OC3 to RMA it.
OTA does nothing, smartswitch shows no updates neither kies.
I'll have to Odin it back to OC3
Can I have some help?
And Success. I'm back on stock OC3 no root.
time to RMA
- camera still doesn't focus
- boot screen is back to normal but when in odin mode the counter shows 0x1
- sometimes shows "sim card could not be detected" or similar messages and force me to restart the phone (just happend 2 times until now, never happend before)
I followed this thread
http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Post 2
Thanks to sway8966

Relocking the bootloader (Returning to complete stock)

Hey guys.
I have just unlocked the bootloader on my p9 and am about to flash TWRP and root. It got me thinking:
Is there a way to return it to complete stock if want to just in case? I've seen firmware lying around on the forum, but does it return the phone completely to stock? And in that case, how do exactly do I flash it?
And furthermore, is there a way to backup the stock recovery image?
Yes, you can unlock/lock bootloader, procedure is similar...
And you can flash stock recovery again, is not need to backup, around is a toolkit who do what you want (unlock/lock, root, flash stock recovery etc)...
Yes, flashing the stock ROM (http://forum.xda-developers.com/huawei-p9lite/development/stock-firmware-links-t3468245) will relock the bootloader

Selling a rooted S4, but I want to factory reset. Can I?

Hello
I need to sell my S4, and it is rooted. I'd like to do a factory reset on it, but I ask if doing so will lose root. I rooted it back in 2017, so I don't remember what I did to it, but I assume that I unlocked the bootloader so that I could root.
I can erase all data and pictures and apps manually, and leave it clean AND rooted, but I might prefer to do a factory reset. If I lose root, it won't be a big deal since any potential buyer of this phone might not even know what root is.
Thanks and be safe
Rooting the S4 has nothing to do with the bootloader, if you have a custom recovery installed then you're on the MDL or MDB bootloader which is a rare exploited bootloader. If you want to reset the phone, I would use Odin to do it by flashing the stock firmware you're currently on.
StoneyJSG said:
Rooting the S4 has nothing to do with the bootloader, if you have a custom recovery installed then you're on the MDL or MDB bootloader which is a rare exploited bootloader. If you want to reset the phone, I would use Odin to do it by flashing the stock firmware you're currently on.
Click to expand...
Click to collapse
Thanks Stoney.. Might you know where I can find the latest stock odin file?
Sent from my OnePlus7Pro using XDA Labs
That depends on your current bootloader. You can flash the one you're on or flash a newer one. You can't flash an older one after a newer one though. Check your bootloader, if you're on MDL then you need the MDL firmware. If you're on anything else aside MDL then you will need other firmware.
Try here:
https://forum.xda-developers.com/showthread.php?t=2616221
And
https://forum.xda-developers.com/galaxy-s4/general/s4-unified-guides-collection-t3966126

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