I have questions about firmware/modem flashing.
1) I've tried both stable and beta, but I'm uncertain which version I'm on now. How do I get to that info?
2) Can I move back and forth between firmware/modem versions just by flashing them one over the other, or is there a step-by-step process, i.e. flash ROM, flash firmware/modem, flash kernel.
3) Do I need to wipe anything when flashing firmware, davik/cache, system?
digger16309 said:
I have questions about firmware/modem flashing.
1) I've tried both stable and beta, but I'm uncertain which version I'm on now. How do I get to that info?
2) Can I move back and forth between firmware/modem versions just by flashing them one over the other, or is there a step-by-step process, i.e. flash ROM, flash firmware/modem, flash kernel.
3) Do I need to wipe anything when flashing firmware, davik/cache, system?
Click to expand...
Click to collapse
1. You can't get that info from anywhere. Just re-flash the firmware that you want and remember which one is it.
2. Yes, a simple flash will overwrite the existing firmware. There are no other steps required.
3. Not needed.
Thank you! I thought that was the case but couldn't find the firmware flash process detailed anywhere.
Related
Guys i was looking for some installation guide but im not sure, if i found the right one. http://forum.xda-developers.com/gala...-roms-t2852310
I have stock 4.4.4 (firmware GNJ8). Is there someone who will not be ofended by noob question and show me some right guide how to flash this GPE rom ? I mean what do i need ? Root (which one?), recovery (which TWRP or CWM (throw CMW manager?)) and something else ? We do not use any knox features in our work, so that should not be a problem.
Thank you for any tips.
Firstly, the provided link does not work. 404 Page not found.
GNJ8..what s4 version is that?
I used CF-Auto-Root to root my s4. But this method does not work on all s4 versions so make sure you read carefully. The third post says on what model of the s4 it works. The thread can be found here.
I use TWRP. CWM just wouldn't flash on my device. Or, if it flashed, it didn't boot into CWM recovery. Kept booting into stock recovery. So I tried flashing TWRP and this one worked so I stick with it.
Make sure that it's the latest firmware for your device. And note that if you're on lollipop, you can't downgrade to kitkat anymore. So you will be stuck on the limited selection of lollipop roms for now.
http://forum.xda-developers.com/galaxy-s4/general/guide-how-to-install-custom-roms-t2852310
sorry for the link.
GNJ8 - European snapdragon version (GT i9505) bought in O2.
CF Auto Root is good idea.
"Make sure that it's the latest firmware for your device." means what exactly ? I have the latest 4.4.4 official stock firmware...
You realize that going from stock to GPE will trip knox, right? Any custom rom or bootloader will trip the knox flag
1. Flash TWRP or Philz recovery true Odin.
2. Wipe data (prepare for new rom) in the recovery.
3. Flash the rom you want with the recovery.
It's as simple as that. You don't need root to do it.
Yep, i know about knox. I dont think i need it.
TWRP which version ? Wipe data/cache (no format /system or similar?) and flash custom rom ? not hard. In fact it sounds so easy that i cant believe What about some post about firmware that with some firmwares you have to do that and sometimes this...
skejpa said:
Yep, i know about knox. I dont think i need it.
TWRP which version ? Wipe data/cache (no format /system or similar?) and flash custom rom ? not hard. In fact it sounds so easy that i cant believe What about some post about firmware that with some firmwares you have to do that and sometimes this...
Click to expand...
Click to collapse
Format system/data wipe of course before flashing a new rom. Pick the version for your phone from TWRP.
Ignore those posts about firmwares.
Hey guys,
After been searching for info about and not much luck, I still have some questions about flashing modems. I am running CM12.1 nightly from last Saturday and I want to flash the hybrid LTE modem.
1.- Any risks involved I should be aware when flashing modem?
1.- For flashing modems, do I need to wipe cache, system or reinstall the Rom at all (before or afterwards modem installation)?
2.- If I switch to stock modem or install a different one, do I need to do any wiping or reinstall at all?
3.- From the attached image of my phone info, can someone confirm which stock modem I have?
Thanks in advance.
1. Use a flashable zip from here -> http://forum.xda-developers.com/nexus-4/general/ref-mako-modem-collection-t2087227. There are also instructions how to do it.
1. Just flash modem, no reinstall or cache wipe necessary.
2. Not in terms of modem
3. See thread link above. Seems to be a modem from Android 4.3
nsmart said:
1. Use a flashable zip from here -> http://forum.xda-developers.com/nexus-4/general/ref-mako-modem-collection-t2087227. There are also instructions how to do it.
1. Just flash modem, no reinstall or cache wipe necessary.
2. Not in terms of modem
3. See thread link above. Seems to be a modem from Android 4.3
Click to expand...
Click to collapse
Because he is on CM12.1, I do not think the changes to the build.prop will stick, but the easiest way is to just run the .zip here with the latest hybrid, which is a cross of the .33 LTE modem, and the latest 1.07 5.1.1 modem http://forum.xda-developers.com/showpost.php?p=60885004&postcount=1707
I'll start off explaining my situation and then explain what myself and lots of other people seem to be confused about.
I was on Kikat last week and then upgraded to PB1 and unlocked my bootloader using method 1 by jkruse. Everything went fine and I was running stang5litre. I wanted to try Phoenix but I could not find instructions on how to get to PD1 first. I then saw that I could go right from PB1 to CM 13. I booted to recovery, wiped, installed CM and gApps, and everything went fine also.
I know my baseband is still PB1 but I'm guessing since I'm on CM now that I'm not actually on any official build right? (PD1, PF4, etc). So with that being said I don't understand how to go to other ROMs or back to LP.
I tried going back to recovery, wiping, and installing stang5litre again but my phone would not boot past the Samsung screen. Guessing something with the kernel? Soni flashed back to CM for now and I've been reading like crazy on here.
I'm trying to understand the process for switching between LP and MM. I found instructions by jkruse in the Phoenix forum (post #68) which talk about upgrading/downgrading bootloader but they are not clear and also they specifically say "Upgrade To PD1 Stock Rooted Rom With PD1 Unlocked Bootloader From 5.0 TW Rom". Well I'm not on a 5.0 TW ROM now.
I've seen countless posts in multiple forums showing a lot of other people are confused about this stuff. If I had all the details (clear instructions, file links, etc) I would glady make a very easy to follow guide and explanation of everything. I'm good at writing out stuff like that and making it very easy to understand.
Some things I want to understand so I can make a guide..
-How to go from PB1 to stock rooted PD1 (I see a guide to get to PF4 but Phoenix says you need PD1)
-How to go from CM to stock rooted PD1
-How to go from CM back to stock rooted PB1
-How to go from PD1/PF4 back to stock rooted PB1 (this process might be the same as the process coming from CM?
Any help/explanation would be greatly appreciated. Some of this info might be scattered across different forums but I think a guide specifically for switching between all the builds would be a huge help to a lot of people. Please link files also. I will definitely give credit to all who help if I do get the info needed to make it!! Thanks!
Bumppp
If you need help finding these things maybe you shouldn't be making a guide....
Sandman-007 said:
If you need help finding these things maybe you shouldn't be making a guide....
Click to expand...
Click to collapse
Please dont bother commenting pointless stuff. I read these forums every day and see lots of people looking for clarification for how to go back and forth between MM and LP. Mainly how to go back to LP. You will also find threads and posts with people giving different instructions. Some say just flash the PD1 rooted stock in recovery.. some say that won't downgrade the bootloader..
Some say to follow Jkruses guide in the second post of the bootloader unlock thread. The part about going back and forth between bootloader's.. which is a way more complicated method. There is different information all over
I highly suggest you read the 2nd portion "If You Already Have Bootloader Unlocked And On A Samsung TW Rom" link.
I think the key you need to understand is that you have to match the bootloader version with the corresponding ROM you are trying to flash. PB1 is for LP ROM. PD1/PF4 is for MM ROM.
Having above said, here's my answer to your question below:
-How to go from PB1 to stock rooted PD1 (I see a guide to get to PF4 but Phoenix says you need PD1)
Click to expand...
Click to collapse
Please follow the 2nd portion of the link above.
If you want to try Phoenix, then you can use the SafeStrap_PF4_Bootloader_Unlock_AIO.zip as jrkruse confirmed PF4 does work with it.
Upon complete the 2nd portion, then you can flash Phoenix's v12 ROM in TWRP directly.
-How to go from CM to stock rooted PD1
Click to expand...
Click to collapse
First of all, find out which CM you are at. I assume you are at CM13, then you would need follow the same 2nd portion instruction again (using the PD1 Bootloader), then flash the stock PD1 rom in twrp.
-How to go from CM back to stock rooted PB1
Click to expand...
Click to collapse
Same as above, except use PB1 bootloader in the process.
-How to go from PD1/PF4 back to stock rooted PB1 (this process might be the same as the process coming from CM?
Click to expand...
Click to collapse
You are right, it is the same process.
I hope I cleared it out for you. If you are not sure where you are at, then I would suggest you odin the original PB1 image, root it, unlock bootloader, flash twrp, then follow the 2nd portion of the link.
ruokuo said:
I highly suggest you read the 2nd portion "If You Already Have Bootloader Unlocked And On A Samsung TW Rom" link.
I think the key you need to understand is that you have to match the bootloader version with the corresponding ROM you are trying to flash. PB1 is for LP ROM. PD1/PF4 is for MM ROM.
Having above said, here's my answer to your question below:
-How to go from PB1 to stock rooted PD1 (I see a guide to get to PF4 but Phoenix says you need PD1)
Please follow the 2nd portion of the link above.
If you want to try Phoenix, then you can use the SafeStrap_PF4_Bootloader_Unlock_AIO.zip as jrkruse confirmed PF4 does work with it.
Upon complete the 2nd portion, then you can flash Phoenix's v12 ROM in TWRP directly.
-How to go from CM to stock rooted PD1
First of all, find out which CM you are at. I assume you are at CM13, then you would need follow the same 2nd portion instruction again (using the PD1 Bootloader), then flash the stock PD1 rom in twrp.
-How to go from CM back to stock rooted PB1
Same as above, except use PB1 bootloader in the process.
-How to go from PD1/PF4 back to stock rooted PB1 (this process might be the same as the process coming from CM?
You are right, it is the same process.
I hope I cleared it out for you. If you are not sure where you are at, then I would suggest you odin the original PB1 image, root it, unlock bootloader, flash twrp, then follow the 2nd portion of the link.
Click to expand...
Click to collapse
Thanks for the reply. I found instructions from Jkruse on page 7 in the Phoenix thread. That's why I am confused because there are so many methods scattered everywhere.
So here's what I tried and something went wrong already.
------------------------
Flashfire Method to Upgrade/Downgrade Your Bootloaders Dev Unlocked To Stock Roms
This Method Only Works If You Have A Dev Unlocked Bootloader Or Have Previously Unlocked Your Bootloader
I just want to add this warning. If you use this method you dont have the safety net that safestrap provides so if something goes wrong in this process you may end up with a unrooted phone and locked bootloaders causing you to have to start The whole rooting process over since you will not have safetrap to boot back into
Upgrade To PD1 Stock Rooted Rom With PD1 Unlocked Bootloader From 5.0 TW Rom With PB1 Unlocked Bootloaders
Download these 2 files and place on phone
PB1_Flashfire_Prepare.zip
PD1_Full_Firmware_With_Dev_Aboot_Twrp_Recovery_Ima ge.tar.zip
Reboot to TWRP and flash PB1_Flashfire_Prepare.zip
Reboot
Open Flashfire (It will be installed by the zip you flashed in TWRP) grant supersu permission
-------------------------
. I rebooted to TWRP. Flashed the PB1_Flashfire_Prepare.zip and rebooted right away. I now had safestrap installed which I did not before. So I go to open it up and my screen goes white for a second and then just returns to the app drawer?? It will not open
So then I delete the file and figured maybe it was a.bad download. Downloaded it again and tried to boot to recovery but it went to stock recovery not TWRP.
So I have no clue what to do now. How can I get TWRP installed again? All I did was flash that one zip so idk what went wrong. I am on PB1 everything.
aholeinthewor1d said:
Thanks for the reply. I found instructions from Jkruse on page 7 in the Phoenix thread. That's why I am confused because there are so many methods scattered everywhere.
So here's what I tried and something went wrong already.
------------------------
Flashfire Method to Upgrade/Downgrade Your Bootloaders Dev Unlocked To Stock Roms
This Method Only Works If You Have A Dev Unlocked Bootloader Or Have Previously Unlocked Your Bootloader
I just want to add this warning. If you use this method you dont have the safety net that safestrap provides so if something goes wrong in this process you may end up with a unrooted phone and locked bootloaders causing you to have to start The whole rooting process over since you will not have safetrap to boot back into
Upgrade To PD1 Stock Rooted Rom With PD1 Unlocked Bootloader From 5.0 TW Rom With PB1 Unlocked Bootloaders
Download these 2 files and place on phone
PB1_Flashfire_Prepare.zip
PD1_Full_Firmware_With_Dev_Aboot_Twrp_Recovery_Ima ge.tar.zip
Reboot to TWRP and flash PB1_Flashfire_Prepare.zip
Reboot
Open Flashfire (It will be installed by the zip you flashed in TWRP) grant supersu permission
-------------------------
. I rebooted to TWRP. Flashed the PB1_Flashfire_Prepare.zip and rebooted right away. I now had safestrap installed which I did not before. So I go to open it up and my screen goes white for a second and then just returns to the app drawer?? It will not open
So then I delete the file and figured maybe it was a.bad download. Downloaded it again and tried to boot to recovery but it went to stock recovery not TWRP.
So I have no clue what to do now. How can I get TWRP installed again? All I did was flash that one zip so idk what went wrong. I am on PB1 everything.
Click to expand...
Click to collapse
The SS/FF method was old instruction. People sometimes has hit or miss. I think Jkruse found out the cause (my guess is the binary status). Please go for the latest one, which is at the OP of the link I gave you.
If you still have the unlocked bootloader, you can always odin the twrp image (I recommend v3.0.0.0).
If you happened lost the unlocked bootloader status, then I would recommend you to odin the original PB1 tar, root, unlock bootloader, odin twrp, then follow the 2nd part of the OP.
I hope this helps.
I have a Galaxy S5 (Verizon) SM-G900V that's running stock rooted Lollipop. Safestrap is on here, but yes, the bootloader is locked. Other than going to Marshmallow (and losing root), are there any custom ROMs (I'm looking for speed and stability) that this phone can take? Or am I stuck with stock, which means I'm stuck with Lollipop if I want to stay rooted?
My choice is this one without root for CID11 or full-featured systemless devbase for CID15.
Thank you. I assume I use safestrap to install on my rooted stock CID 11, but on this new one without root won't be able to restore apps from Titanium. Are there any other alternatives an 11 can use and keep root, and if I try one can but change my mind can I restore a backup in safestrap to get back to rooted stock?
bbsc said:
My choice is this one without root for CID11 or full-featured systemless devbase for CID15.
Click to expand...
Click to collapse
androidman807 said:
1) is that right that it's possible to safestrap a different ROM with my locked bootloader?
2) If yes, how can I tell which ROMs are stock I can use in safestrap (like Phoenixrom) and which are custom I can't use (like LineageOS)?
3) if I have a SS backup of my stock lollipop and don't like phoenix (which seems to be MM) can I restore from safestrap back to my stock LL? Or could I just re-install the stock LL image?
4) can I/should I update the modem in this process, or does the locked bootloader prevent that?
Click to expand...
Click to collapse
You'd better use a single thread for similar questions. There's a nice SM-G900V section too.
1. Yes.
2. You're limited to a stock signed Verizon-Samsung kernel, not to a stock ROM. You can (in theory) install any ROM that can use a stock signed Verizon-Samsung kernel but even a kernel from SM-G900F will not work.
LOS uses it's own kernel.
TWRP uses it's own kernel.
RR uses it's own kernel.
Root on 6.0.1 and above needs kernel modification.
These won't work.
If Phoenix can use a stock kernel (I don't know), it will work.
3. You may want to have a look at this thread: https://forum.xda-developers.com/verizon-galaxy-s5/help/getting-safestrap-loop-t3601977
I don't usually do it myself but it should be possible.
It's not an easy way and there are some logical traps on it.
So think it over before the action.
4. Locked bootloader does not prevent modem updating. It's definitely possible. You can simply flash a modem part of stock firmware in Odin.
Thanks. I've tried casting a broader net, unsure if my problem was Verizon-specific or not. Turns out, it's even more specific than that, as at least some 900Vs have unlocked bootloaders and some (mine) don't.
As I look back over my journey, you were there from the beginning when I was trying to upgrade from 4.4.2 to my current Lollipop and keeping root. Following the steps of the amazing @jrkruse led to different problems, which still persist. There seems no way to fix that, from which I conclude the jrkruse stock ROM and this phone don't get along. Hence, the idea to try a different ROM other than this LL. It seems that my locked bootloader has me on stuck on this particular stock ROM if I want to keep root. There is no list of other ROMs I can put on this CID11, and I'm not sophisticated enough to know which I can try and Safestrap back safely if things aren't wonderful. This has me doing a hot reboot every day or two when I see wifi can't get DNS, but I don't see any other option other than buying a newer Galaxy with a microSD card and an unlocked bootloader (maybe the S8?). Regardless, this sums up my journey, I've learned a lot along the way, and both you and @KazuDante were extremely helpful and earned my Thanks button many many times. Thanks again.
bbsc said:
You'd better use a single thread for similar questions. There's a nice SM-G900V section too.
1. Yes.
2. You're limited to a stock signed Verizon-Samsung kernel, not to a stock ROM. You can (in theory) install any ROM that can use a stock signed Verizon-Samsung kernel but even a kernel from SM-G900F will not work.
LOS uses it's own kernel.
TWRP uses it's own kernel.
RR uses it's own kernel.
Root on 6.0.1 and above needs kernel modification.
These won't work.
If Phoenix can use a stock kernel (I don't know), it will work.
3. You may want to have a look at this thread: https://forum.xda-developers.com/verizon-galaxy-s5/help/getting-safestrap-loop-t3601977
I don't usually do it myself but it should be possible.
It's not an easy way and there are some logical traps on it.
So think it over before the action.
4. Locked bootloader does not prevent modem updating. It's definitely possible. You can simply flash a modem part of stock firmware in Odin.
Click to expand...
Click to collapse
bbsc said:
4. Locked bootloader does not prevent modem updating. It's definitely possible. You can simply flash a modem part of stock firmware in Odin.
Click to expand...
Click to collapse
ps: I read the first ten pages of this thread about modems, but the first post strongly implies that they're not flashable with all the crossouts, which leaves with Odin, but if I'm reading it right one needs TWRP, which I don't have, only safestrap. If there's a different modem thread I should look at, or if should try the Odin ones, thanks for pointing me in the right direction. It seems I'm terrible at finding what I'm searching for in this info-rich site.
androidman807, which firmware (modem, kernel, bootloader) do you have and which do you want to have?
P.S. "Odin: (necessary for those with TWRP recovery)" means that a phone with TWRP has "Binary status: Custom" and there's no other way to update modem except Odin.
Baseband : PB1
Build : PB1
Kernel : 3.4.0
At this point I'll take any rooted firmware that is stable and not sluggish with this phone, with ability to at least get back to this if it's a step backwards.
bbsc said:
androidman807, which firmware (modem, kernel, bootloader) do you have and which do you want to have?
P.S. "Odin: (necessary for those with TWRP recovery)" means that a phone with TWRP has "Binary status: Custom" and there's no other way to update modem except Odin.
Click to expand...
Click to collapse
androidman807 said:
Baseband : PB1
Build : PB1
Kernel : 3.4.0
At this point I'll take any rooted firmware that is stable and not sluggish with this phone, with ability to at least get back to this if it's a step backwards.
Click to expand...
Click to collapse
I think, if you have network problems with this phone, it will be the best to backup your data and try a factory firmware with full factory reset.
If you're currently on BPB1 you can try any firmware above (and including) BOK3 and return back to BPB1 if you don't like it.
Firmwares BOK3 and BPB1 (your current) can be rooted after installation.
If I remember correctly, you need root to use Titanium backup app.
But you may want first try if the network problems persist on different stock firmwares.
I'd begin with the latest - DQI2.
Titanium is a big reason why I want to keep root. So BOK3 and DQI2 are ones I can root and still return to PB1. Thanks, I'll start looking for them and their rooting procedures.
bbsc said:
I think, if you have network problems with this phone, it will be the best to backup your data and try a factory firmware with full factory reset.
If you're currently on BPB1 you can try any firmware above (and including) BOK3 and return back to BPB1 if you don't like it.
Firmwares BOK3 and BPB1 (your current) can be rooted after installation.
If I remember correctly, you need root to use Titanium backup app.
But you may want first try if the network problems persist on different stock firmwares.
I'd begin with the latest - DQI2.
Click to expand...
Click to collapse
androidman807 said:
So BOK3 and DQI2 are ones I can root and still return to PB1.
Click to expand...
Click to collapse
No. I've written something different above.
You can flash BOK3 - DQI2 and return back after this. There're 14 firmwares.
But you can root only BOK3 and BPB1 from those 14 firmwares.
I advice you to flash DQI2 just to see if it solves network problems.
androidman807 said:
ps: I read the first ten pages of this thread about modems, but the first post strongly implies that they're not flashable with all the crossouts, which leaves with Odin, but if I'm reading it right one needs TWRP, which I don't have, only safestrap. If there's a different modem thread I should look at, or if should try the Odin ones, thanks for pointing me in the right direction. It seems I'm terrible at finding what I'm searching for in this info-rich site.
Click to expand...
Click to collapse
You can flash modems using odin even if you dont have twrp , they made it that way for those who are not on stock firmwareand that have twrp for example those who are on nougat , instead of flashing back stock and redoo the whole thing all over again , so in the vzw section there is a thread that has all the latest modems ( i think qh2) , just download qh2 ( i used the non-hlos for 4g) and in odin use ap and select the downloaded tar(modem) and flash , phone has to be in download mode.
Thank you. I was hot on the modem idea when I was going to switch to Lineage or something else as a natural step. But since it's tied to 4G and cell service and not my sporadic DNS-on-wifi issue, I'm not sure I see the benefit, but then I could be wrong. I figure a different ROM will have different drivers for the wifi radio and solve things. At least that's been my hope all along.
KazuDante said:
You can flash modems using odin even if you dont have twrp , they made it that way for those who are not on stock firmwareand that have twrp for example those who are on nougat , instead of flashing back stock and redoo the whole thing all over again , so in the vzw section there is a thread that has all the latest modems ( i think qh2) , just download qh2 ( i used the non-hlos for 4g) and in odin use ap and select the downloaded tar(modem) and flash , phone has to be in download mode.
Click to expand...
Click to collapse
Thank you! I will likely flash this with Odin over the weekend (or with SafeStrap?). I've found QI2 here, the first of the two links. Just to be prepared, what steps will I take to rooting this new ROM?
bbsc said:
I advice you to flash DQI2 just to see if it solves network problems.
Click to expand...
Click to collapse
Where can I find BOK3, and how do I root it after installation if I don't have TWRP (but only safestrap)?
Edit: here's OK3 with steps on how to root it, but they're quite scary and possibly outdated.
bbsc said:
I think, if you have network problems with this phone, it will be the best to backup your data and try a factory firmware with full factory reset.
If you're currently on BPB1 you can try any firmware above (and including) BOK3 and return back to BPB1 if you don't like it.
Firmwares BOK3 and BPB1 (your current) can be rooted after installation.
If I remember correctly, you need root to use Titanium backup app.
But you may want first try if the network problems persist on different stock firmwares.
I'd begin with the latest - DQI2.
Click to expand...
Click to collapse
Thanks again - I flashed with Odin the DQI2 I found but didn't know how to root it (Safestrap erased and no TWRP). Maybe the answer is the same as the other post I just replied to. That's obviously a blind spot I have that has me stuck on PB1 - I don't know how to root anything else on this CID 11.
bbsc said:
No. I've written something different above.
You can flash BOK3 - DQI2 and return back after this. There're 14 firmwares.
But you can root only BOK3 and BPB1 from those 14 firmwares.
I advice you to flash DQI2 just to see if it solves network problems.
Click to expand...
Click to collapse
Hi,
I am currently trying to get into Andriod Development. I have an old Note 4 that I can play with and want to try some things. Haven't done so yet.
So, I understood that it is necessary to move to a custom recovery to be able to root the phone or to flash custom ROMs. I think I also understood to go back to the stock ROM.
However, an information I haven't found yet is: If I flash a custom Recovery, e.g. CWM or TWRP, is it possible to revert to the stock recovery in any way?
thanks in advance.
Lars
califax2k said:
Hi,
I am currently trying to get into Andriod Development. I have an old Note 4 that I can play with and want to try some things. Haven't done so yet.
So, I understood that it is necessary to move to a custom recovery to be able to root the phone or to flash custom ROMs. I think I also understood to go back to the stock ROM.
However, an information I haven't found yet is: If I flash a custom Recovery, e.g. CWM or TWRP, is it possible to revert to the stock recovery in any way?
thanks in advance.
Lars
Click to expand...
Click to collapse
Yes, you flash via Odin the firmware for your phone model - https://www.sammobile.com/firmwares/
Yes, you can use the repair 4 files firmware for your phone model (example here is 910C) - https://firmware.gem-flash.com/index.php?a=browse&b=category&id=1268
Yes, use Samsung Smart Switch for PC - like here