I've seen mention on some threads that it is possible to downgrade the firmware. I've had odd issues since upgrading to NG3 through Odin. Has anyone else downgraded/had odd issues with NG3?
You can downgrade to an earlier 4.4.2 version firmware on your S5. Use Odin to write the full firmware image to your phone.
Possibly Samsung might bar this in the future by setting another qfuse or bootloader changes. But for now it works fine. There are lots of existing threads that elaborate at length on this if you read or search the forum.
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Related
After reading through the topic, I'm still a bit unclear as to the camera firmware issues relating to the latest 4.1.2 updates. Does this newer firmware upgrade the camera itself (even when flashed via Mobile Odin) or is there a separate process?
I had thought that the earlier leaked firmware was the one that didn't properly upgrade the camera, but I'm still unclear.
Can anyone provide some clarification?
For me, *#34971539# did nothing.
I am going to flash the firmware on my m8 to upgrade to 4.4.4 ARHD but I am still unsure of how to identify the proper firmware zip . Could someone provide some guidance? Attached are some images from the recovery. I'm not sure what numbers I need to match with the firmware zip. And I can't find how to view what numbers are in the zip. Any advice is very much appreciated.
hboot 3.16 corresponds to firmware that deployed with 1.x software. Its what many folks call "1.x firmware" for lack of any better title, since firmware doesn't really have a "number".
If you want to update to the latest ARHD, you need "3.x firmware". Any firmware with number 3.xx.xx will allow the phone to boot normally, and with working WiFi. The numbers after the 3 are just carrier/region specific versions.
But for the AT&T network, you are probably best off flashing the 3.28.1540 firmware posted on WNC's ROM here: http://forum.xda-developers.com/att-htc-one-m8/development/att-4-4-3-2-22-1540-3-debloated-sense-6-t2837365
Thanks a lot!
redpoint73 said:
hboot 3.16 corresponds to firmware that deployed with 1.x software. Its what many folks call "1.x firmware" for lack of any better title, since firmware doesn't really have a "number".
If you want to update to the latest ARHD, you need "3.x firmware". Any firmware with number 3.xx.xx will allow the phone to boot normally, and with working WiFi. The numbers after the 3 are just carrier/region specific versions.
But for the AT&T network, you are probably best off flashing the 3.28.1540 firmware posted on WNC's ROM here: http://forum.xda-developers.com/att-htc-one-m8/development/att-4-4-3-2-22-1540-3-debloated-sense-6-t2837365
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Click to collapse
So even if you just want the new Firmware, you have to do everything in that thread? I'm asking because it shows installing a ROM then doing stuff with Xposed, which I assume will be undone when the ROM changes
badbwoydes said:
So even if you just want the new Firmware, you have to do everything in that thread? I'm asking because it shows installing a ROM then doing stuff with Xposed, which I assume will be undone when the ROM changes
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Click to collapse
No, you just need to perform the steps listed under "Updating firmware" numbered 1-8. And also skip the very last step (Step 8, Substep 3).
The rest is if you want to run the modified Dev Ed ROM, as you have somewhat already figured out. But honestly, if you are on AT&T's network, I would consider the ROM anyway. Many folks (including myself) get various network errors running "international" based custom ROMs; which the debloated Dev Ed ROM does not suffer from.
I have an s5 that came with 5.1.1 completely stock, unrooted with baseband: G900TUVU1FOF6. I have never downgraded an s5 before. I've only done it to nexus devices. Does anyone have any instructions on how I should downgrade it? I was thinking of using the 5.1.1 rooting procedure that involves flashing a kernel with kies then maybe it would be possible to flash a custom 5.0 rom with recovery. I'm not sure that is a good idea though because I wasn't sure if the bootloader, CSC, or PDA firmware would still be stuck at the 5.1.1 version.
Edit:
I found this video which seems to say you don't need to root. I'll try the video's method. https://www.youtube.com/watch?v=Nek0lowlMmM
I looked around the internet a lot and wasn't able to find any useful information about this. I have a GT-I9300
I've recently updated my OS (lineage 4.1 - Android 7.1.2) and modem (I9300XXUGMK6) and I'm wondering what a recommended boot-loader might be. I chose this modem because it was listed on the ROM page, and it seems to work fine.
I found this but it appears to be very old:
https://forum.xda-developers.com/galaxy-s3/general/ref-galaxy-s3-stock-kernel-bootloaders-t2189063
Before I updated, my modem was version I9300XXEMG4, and I'm pretty sure I updated my modem and boot-loader at the same time previously, which leads me to believe my boot-loader is probably XXEMG4 too (assuming that exists).
Should I update to XXEMG5? Should I try to find the boot-loader that corresponds to my modem (XXUGMK6, assuming that exists)?
I just want something that is probably going to be reliable, not that I have any specific problems, but I believe in staying up to date. Where can I find the latest boot-loaders? Any reason not to just get the latest? What are people here using in general?
The bootloader doesn't need to be changed and you cannot downgrade once you've updated the firmware to mk6 unless you have a backup of your efs from before mk6.
If it ain't broke..
Beamed in by telepathy.
Ok, it seems to be running fine since I upgraded the modem. Thanks.
Hello!
First of all, I'm a novice and have no knowledge of how the firmware is constructed, e.g. wrt any dependencies between BL, AP, CP and CSC. I've searched the S9+ forums without finding answers - I have however found threads concerning downgrading but they seem not to answer my exact question.
I'm currently on the latest build of Android 10 for my region (SM-G965F, 965FXXU7DTAA). Completely stock, no modifications.
I read in an S7 thread that someone had been able to downgrade to a previous FW version with a lower BL version than the phone currently was on by doing the following:
- downloading and extracting the FW wanted
- removing the sboot and the modem parts of the firmware
- repacking the remaining parts
- flashing with odin
According to him/her, this worked, the phone booted succesfully, even though he/she at that point hadn't yet tested it to the full extent and in all aspects.
My question: Would this even be possible for the S9+? I.e. only flashing the AP and CSC parts of the desired FW via Odin while leaving BL and CP parts untouched? Would it even work, and if so, is it possible to say/know anything about adverse effects. Is the phone likely to brick? Knox?
Excuse me if this is obvious to you all, but I'm curious about this as I am currently not satisfied with Android 10.
I should add that I'm aware that it is currently possible to downgrade to latest version of Pie the "regular way", but I'm looking for options, if any, to go even further back
Rgds,
sten_amund
sten_amund said:
Hello!
First of all, I'm a novice and have no knowledge of how the firmware is constructed, e.g. wrt any dependencies between BL, AP, CP and CSC. I've searched the S9+ forums without finding answers - I have however found threads concerning downgrading but they seem not to answer my exact question.
I'm currently on the latest build of Android 10 for my region (SM-G965F, 965FXXU7DTAA). Completely stock, no modifications.
I read in an S7 thread that someone had been able to downgrade to a previous FW version with a lower BL version than the phone currently was on by doing the following:
- downloading and extracting the FW wanted
- removing the sboot and the modem parts of the firmware
- repacking the remaining parts
- flashing with odin
According to him/her, this worked, the phone booted succesfully, even though he/she at that point hadn't yet tested it to the full extent and in all aspects.
My question: Would this even be possible for the S9+? I.e. only flashing the AP and CSC parts of the desired FW via Odin while leaving BL and CP parts untouched? Would it even work, and if so, is it possible to say/know anything about adverse effects. Is the phone likely to brick? Knox?
Excuse me if this is obvious to you all, but I'm curious about this as I am currently not satisfied with Android 10.
I should add that I'm aware that it is currently possible to downgrade to latest version of Pie the "regular way", but I'm looking for options, if any, to go even further back
Rgds,
sten_amund
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Click to collapse
admittedly, i TL : DR all of it, but on the S7, downgrading the bootloader was possible for a while, thats not the case here. You can only flash F/W with the same or higher BL version. If there is an android 9 version available with the same BL, then you can flash it all you like. www.sammobile.com/firmwares is where you need to go to look. But use the frija tool or SamFirm to actually d/l the zip unless you like wasting 2 hours of your life
Thanks for the reply
I'm aware that I am able to downgrade to the latest version of Pie, which has the same version BL as my current Android 10. But my question is rather if it is possible at all to flash only the AP and CSC sections of a previous FW (with lower BL version) and leave the current Android 10 BL and AP untouched as it is on the phone?
Sorry if I was unclear in my first post
Rgds,
sten_amund
sten_amund said:
Thanks for the reply
I'm aware that I am able to downgrade to the latest version of Pie, which has the same version BL as my current Android 10. But my question is rather if it is possible at all to flash only the AP and CSC sections of a previous FW (with lower BL version) and leave the current Android 10 BL and AP untouched as it is on the phone?
Sorry if I was unclear in my first post
Rgds,
sten_amund
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Click to collapse
As long as the previous firmware is the same bit number you can flash either. You would have to flash all the files as the 10 bootloader more than likely isn't going to boot pie. 5th Digit from the far end of build is your bit number.
Thank you for your reply - good input wrt 'bootability'.
I'll downgrade to the latest version of Pie the regular way.
rgds,
sten_amund