probably referring to being unable to use Odin successfully. i was having same issue while trying both USB 2 and 3 ports and multiples of each on my PC. i was about to give-up when i thought that maybe it was a windows 10 issue. transferred files onto flash drive "borrowed" my mother-in-laws for a few and surprise her windows 7 with USB 2 ports worked perfect. now about the original question, i would also like to know since im wanting to trade in for the S10 Note series but wanted to revert completely back before wiping so that there's no "issues" with the trade-in later down the line that will loose me both my phone and my credit toward new phone. anything is greatly appreciated.
[V2][Root][G950U/W]PartCyborgRom - Root for Snapdragon S8 with Custom Rom
- Thread starter partcyborg
- Start date
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- Tags
- g950u galaxys8 root samfail snapdragon
probably referring to being unable to use Odin successfully. i was having same issue while trying both USB 2 and 3 ports and multiples of each on my PC. i was about to give-up when i thought that maybe it was a windows 10 issue. transferred files onto flash drive "borrowed" my mother-in-laws for a few and surprise her windows 7 with USB 2 ports worked perfect. now about the original question, i would also like to know since im wanting to trade in for the S10 Note series but wanted to revert completely back before wiping so that there's no "issues" with the trade-in later down the line that will loose me both my phone and my credit toward new phone. anything is greatly appreciated.
TheMadScientist
Recognized Contributor
Flash latest stock firmware with latest odin, all is undone. Wrong Odin or firmware is most people's issue
Just to clarify @TheMadScientist if I'm on this current Rom and wanted to upgrade to newest firmware, I just need to flash the newest AP and BL files? Would that also fix my 80% battery?
TheMadScientist
Recognized Contributor
Depends on what your doing. If you want stock unrooted latest you need to flash all files in odin. Yes that undoes the 80% charge cap limmit. The latest is pie. Obviuosly so you need the new baseband and modems too. So all 4 files. AP bl csc and cp. Need to be flashed so there are no connectivity issues if you just want nougat still then find the latest nougat ap and bootloader since you already have nougat baseband and modems
---------- Post added at 10:14 AM ---------- Previous post was at 10:13 AM ----------
Either way stock bootloaders will undo the 80% cap. Its implemented in the kernel we need for root. But if you flash all stock files all is undone. Since we cant trip knox. Warranty would still be valid depending on purchase date
Is there a good app/site to download all the files in one place? Or maybe a link to the proper page? I can't seem to find the right ones or at least both sets I've downloaded so far keep coming back as "corrupted and/or incorrect".
Edit- Found sammobile which seems to be great for finding the exact firmware, however im a little (to say the lease) disapointed in the download speed cap. This is going to take forever to finish at my current 50 kbps speed when i have 54.87 mbps download from speed test ran right now. Is there a better site?
Edit- Found sammobile which seems to be great for finding the exact firmware, however im a little (to say the lease) disapointed in the download speed cap. This is going to take forever to finish at my current 50 kbps speed when i have 54.87 mbps download from speed test ran right now. Is there a better site?
Last edited:
stuck on downloanding
been over an hour and im stuck at setting up second part of the A upload.
been over an hour and im stuck at setting up second part of the A upload.
TheMadScientist
Recognized Contributor
still stuck
OK so got through the first part Loaded the first tar, then hit start. i get a complete(write)operation failed and ive tried different USB ports
OK so got through the first part Loaded the first tar, then hit start. i get a complete(write)operation failed and ive tried different USB ports
TheMadScientist
Recognized Contributor
Does the device show fused binary or anything also if your on bit 2 and flashing the ap. if you read the instructions. It will fail
Fail
So on the device it says fuse blown everything else looks normal. Yes I did read it would fail but it wasnt it supost to go into upload after completing the A tar?
So on the device it says fuse blown everything else looks normal. Yes I did read it would fail but it wasnt it supost to go into upload after completing the A tar?
TheMadScientist
Recognized Contributor
Its been a while. I cant remwmber the exact line of fails and errors. But I know its suposed to error out in several ways and its ok.
fail
OK cool im now getting a fail on the BL not sure what to do to clear it. ive exited im trying a different file just shooting in the dark. its my first root. Im not getting FAIL! SHA256 is invalid
OK cool im now getting a fail on the BL not sure what to do to clear it. ive exited im trying a different file just shooting in the dark. its my first root. Im not getting FAIL! SHA256 is invalid
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That entirely depends on why it's panicking. Asking that is basically the same thing as asking "how do you fix a car that won't start?". There are literally millions of things that can cause a car to not start, from a dead battery to someone stole the engine, so to answer you would need more information, right?
Luckily with a kernel panic the reason will be right there in the logs. If you can capture logcat when it happens the full exact reason will be right there in the logs. If it's too random for that to be simple I'm sure there are other ways of getting logs but you'd have to ask someone who knows the s4 as I never had that phone
TheMadScientist
Recognized Contributor
No this is for regular s8. Goto the s8 plus threads and look. This is for v2 boot loader
Lost root and tried to re-installed samfail and party cyborg
I had this phone rooted on the v2 (updated from v1) but recently I updated my superSU app and lost root, but xposed was still working. I decided to re flash rom and bootloader but the AP flash hangs at the every end. I watched and entire movie and it did not finished. I originally used usb-c to c then usb-C to usab A 2.0 adapter and then connected the oem cord. When I unplugged my phone and try try to boot back into dowloand mode I get the "error when updating" message. I can then flash the BL and the phones boots fine but kernel panics minutes after boot. I had twrp installed via safestrap (twrp for s8 for locked bootloader) but I think partly flashing the AP and then flashing BL disabled it. Anyway, I trried flashing BL 3 times and always hangs on that last bit. Should I try flashing my stock back up then try to root again?
I had this phone rooted on the v2 (updated from v1) but recently I updated my superSU app and lost root, but xposed was still working. I decided to re flash rom and bootloader but the AP flash hangs at the every end. I watched and entire movie and it did not finished. I originally used usb-c to c then usb-C to usab A 2.0 adapter and then connected the oem cord. When I unplugged my phone and try try to boot back into dowloand mode I get the "error when updating" message. I can then flash the BL and the phones boots fine but kernel panics minutes after boot. I had twrp installed via safestrap (twrp for s8 for locked bootloader) but I think partly flashing the AP and then flashing BL disabled it. Anyway, I trried flashing BL 3 times and always hangs on that last bit. Should I try flashing my stock back up then try to root again?
V7
Okay so now that there has been an exploit found and root achieved on v7 is it safe for me to go ahead and flash this rom? I'm on v7, was running stock 9.0 before flashing a different rom running 7.0.
Okay so now that there has been an exploit found and root achieved on v7 is it safe for me to go ahead and flash this rom? I'm on v7, was running stock 9.0 before flashing a different rom running 7.0.
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68SamFail presents...
PartCyborgRom
BQL1
A Rooted Custom Rom
For G950U/W, Bootloader Revisions 1 or 2 only any higher are not currently rootable or vulnerable to this exploit
Updates
New Release and a new OP that I hope is easier to read.
Send feedback or suggestions on improvements to me via pm here or on telegram.
Heads Up
You may notice that the BL version of this release is different than the system rom part.
The rom version is in fact BQL1, but the BL is a new version of AQK2. The reason for this is because
the latest combination, ARA1, has a number of sensors not working. I figured out a fix but it requires splicing
stuff in from other versions, and it didnt feel like the battery lasted as well. I am still testing though and
the next release if its ready will come with ARA1. This is not the same BL as the previous
release though, so if you upgrade also flash this new BL!
Thanks!
Featured Modifications
Deodexed
Deodexed for all devices.
I found a way that works!
It should keep working as long as nougat
(is that a haiku?)
Xposed Preinstalled
PCR now comes out of the flasher with xposed pre-installed!
NOTE: Xposed Installer may crash on first boot. It will not crash after setup finishes and you reboot
New Boot Animation
Another great one from @Ryan-refoua.
This one is my favorite so far.
JamesDSP
I added another DSP style audio mod. JamesDSP is similar to V4A in how it operates and what features it has, but it has some really awesome features that have made me a fan and a regular user. Among other things, it has a better convolver (IRS processing) implementation, and its bass boost is significantly better than v4a. If there are things you like about V4A you can use both at the same time.
ITYBP Modded YouTube
A last minute addition, this is a really nice youtube mod brought to you by @laura almeida, @Razerman and @ZaneZam. It features some cool additions like native adblocking (no more xposed module), overriding your max youtube resolution (you can watch 4k videos on your phone, but not 4k hdr). I have been using it for a while and really like it. A big thanks to them for letting me include it with PCR
Improved Debloating
Found better stuff to delete. Added back some stuff I took out before that some of you asked for.
If you find something missing that you want back, pull it from the stock rom and install it in /system/app or /system/priv-app, wherever you got it from.
Improved Battery Life
Thanks to some battery sleuthing by @TheMadScientist, this release comes with a nice big bump in efficiency. With just some very minor tuning using amplify and a service disabler, I can get around 1%/h drain.
Performance Improvements
That increased battery life does not come at the cost of performance. In fact performance is better too. Part of that is due some personally tested build.prop tweaks. Another part is some data optimisation scripts that now run at boot. You wont notice those, but they are there doing their thing.
Other Features
New for first time flashers
- Pre-Rooted with SuperSU installed
- CSC OYN pre-installed. Tested working on several carriers
- RCS and VoLTE icons removed from status bar.
- High quality audio mods, including
- Viper Audio (V4A)
- Dolby Atmos from the Axon 7
- Pandora hifi audio framework
- Native Google Dialer & Contacts support, including local search, spam call blocking
- Oreo 8.1 Emoji Icon Set
- Custom Lockscreen Clock font
- Stock system display fonts replaced with Apple's original San Francisco Font
Special Thanks
- @ahiron and @Zackptg5 for the killer sounds from V4A and Dolby Atmos Mods!
- The Aiur crew for Pandora (now a legacy mod but works great on the s8)
- @syndre for the Google Dialer and Contacts framework mod
- @rayan-refoua for the beautiful Tech Lines Custom boot and shutdown animations!
- Last but not least, my new friend @laura almeida, along with @Razerman amd @ZaneZam for letting me include the iYTBP - injected YouTube Background Playback Mod
- everyone who tested
Warnings/Disclaimers/Known Issues
- 80% Battery life like every other rooted US snapdragon device
- Flashing on a USB 3.0 port will likely cause corruption in your flash that can cause kernel panics, loss of root, and occasionally very strange other errors. If you get something like this, its not the rom its a hardware conflict that can only show up with larger images like are used in SamFail flashing. See the section below on Kernel Panics for more.
- If there is an app or apk from the stock rom that you wish you had installed, the best solution is to extract it from your stock rom image and copy it to the same place in /system using a root file manager.
SamFail Rooting Process
and Rom Installation
WARNING: THE FOLLOWING WILL ERASE YOUR WHOLE PHONE
If you have a SDCard, remove it from your device. Occasional firmware incidents have wiped SDCards in the past. It has neer happened to me, but I have a backup of my sdcard so I can be a little more risky. Better safe than sorry.
Prepare the Following:
- complete stock rom at your bootloader rev in case things dont work
- Everything backed up
- Both Prince Comsy Odin, and Regular Odin for flashing stock
- A USB 2.0 Port. If you attempt to flash with a USB 3.0 port it may work, but if you get kernel panics, or unexpected bad behavior and/or crashes your usb3 is absolutely to blame. some people get lucky and suceed after a few tries, YMMV. If you can not acquire a machine with a usb2.0 port, get a usb2.0 hub and run your phone into that & that into your machine. Reports are that has made things work for some, but we get few reports back.
What is my Bootloader Revision?
Your bootloader revision is part of the baseband build number of the firmware you are currently running. Lets use this rom as our example. The full build number is as follows: G950USQS2BQL1
Start from the right and count 5 characters back. See that 2? That is the bootloader revision for the firmware that came with this rom. But we are not flashing the BQL1 firmware (or Baseband), We are using an older version because it works better. The version we are flashing is: G950UEU2AQK2. Can you tell which revision it is?
Is my Phone Compatible?
Is it a G950U? Is it a G950W? If you answered "yes" to one of those questions, then the answer is "yes". That being said, flashing this rom if you are on bootloader revision 1 will upgrade your bootloader revision to 2, which means that any previous rom you were running wont work, so be prepared by having a copy of stock for bootloader version 2. If you don't want to move to version 2, you can still run the latest PartCyborgRom though, just use the G950UEU1AQk1 BL_ tar under Old Downloads in place of the one that came with this one. It will work just fine. However if you are unsure I suggest you go ahead and upgrade, there are not really any benefits to staying on 1 at this point.
Steps to Root
1) Download and unzip AP Part 1 and BL Part 2 zip files.
2) Download and unzip Prince Comsey Odin and start it up
3) Reboot device into Download mode and connect it to your pc
4) Open Comsy Odin and only add the AP Part1.tar.md5 file. Select only the following options:
- "Auto-Reboot"
- "F-Reset Time"
- "Nand Erase All"
NOTE: Odin will freeze while checking the AP tar.md5 hash.
Be patient, it will come back. If your computer is old this will take even longer.
5) Click "Start" and wait for the system.img.ext4 file to flash fully to your device. This will take a while too.
ATTENTION
When the flash finishes, this is when the SamFail magic happens. Instead of saying "Failed (Auth)" like it should, the device will crash into upload mode with "Unknow Error".
If your device does not do this, and just says "Failed (Auth)" or something similar and stays in download mode, you need to start again from the beginning, but using a different set of usb ports as you have suffered from the usb3 corruption.
When you see the upload mode page, do the 3 button salute to reboot into download mode again.
WARNING: When you reboot from upload mode, it wont look like download mode. You will see an error.
When you reboot back into download mode, your screen will say that you had a failed update and you need to do emergency repair or take your device to a service center.
Rest assured, your phone is actually in download mode, and Odin will have recognized it and said "Added!" along with the com port lighting up underneath the progress bar. Just continue the process. It is safe to do so and that error will go away after the next step.
6) Close and re-open Comsy Odin or hit the reset button, and add BL_PartCyborgRom-BootLoopEdition-<version>.tar.md5 to the BL section.
7) Leave the default checkboxes for "F Reset Time" and "Auto Reboot" checked. Uncheck "Nand erase all". Click "Start" and flash the BL (part 2) to your device.
Note: If you forgot to uncheck nand erase all, don't worry. You are just wasting time doing something again that you already did, the outcome is the same. "All" in "Nand Erase All" means "all userdata", which means cache and, well, userdata. Nothing else is deleted.
8) Wait for the flash to finish . It won't take very long at all as the files are small.
9) When it has finished, Odin will say PASS and your device will reboot into recovery.
From this point forther the scary download error message will be gone for good (or until next flash). Don't go looking yet though, you have more work to do to get root.
Warning: Failure to follow this step could lead to a corrupted instance with no cell coverrage
10) When in recovery issue a factory reset. This ensures that your device has a userdata and cache partitions that are valid, and that the csc is processed correctly. Failure to do the reset could cause issues with either.
11) Boot the device as normal. Wait for it to come up. Its deodexed so it will take longer than even your average odexed rom.
All done!
FlashFire Instructions
Dirty Flashers
Help! I Got a Boot loop!
If you get a boot loop or your device hangs at boot, try the following:
1) Reboot to recovery and factory reset again.
To get to recovery hold power+vol-down until screen goes black, then wait till upload mode (press power key for 7+ secs) comes up. Then press vol-down+power again and hold it till it reboots and as SOON as the screen goes black switch to holding vol-up+power+bixby. Hold it for 5-7sec then let go and you will wind up in recovery mode. If this doesnt help, or you can't get to recovery because you cant press the buttons right, proceed to the next step.
2) Try flashing just Part 2 (the BL) again. not only will this get you back in recovery, it will also format your cache again. Its worth a shot and doesnt take long.
Kernel Panic, Invalid Argument
Start Over
Go back to the beginning and do everything again. If it fails again, even in a slightly different way this time, bad interaction between the s8 and your USB port/controller/cable/etc are causing the image to be corrupted as its being written to disk. Try the following:
1) New USB Ports. If you have them, use a different set of usb ports (not the one next to it, but one further away). Its possible that that will be your "good" port, and that will be enough. Lots of machines also have some USB3 ports and some USB2.
2) New Cable. Its less likely, but maybe a new cable will help. Do the whole thing over with a new cable.
3) Try a few times. It sounds silly, but people who have had this issue have reported that eventually it just works. Try a few times until you get sick of trying. If you try like 10 times it probably wont work on the 11th though.
I Dont Have Another USB Port!
Try to borrow your partner/spouse/roommate/friends computer for a quick flash. Ask about the USB ports though, because another 3.0 port may not help you.
If you can't get someones computer, you can purchase a USB2.0 Hub online or at your friendly neighborhood electronics store. They arent very expensive, and I have heard positive reports from people saying it did the trick.
None of that Worked! I'm Screwed!
No you probably arent. I can count on one hand the number of people who someone couldnt get this working eventually. Some of us will be here to help. Check out our telegram channel, where people will be around that can help you. Its right here!.
And they all rooted happily ever after.
The End.
XDA:DevDB Information
PartCyborgRom, ROM for the Samsung Galaxy S8
Contributors
partcyborg
ROM OS Version: 7.x Nougat
ROM Kernel: Linux 4.x
Based On: TouchWiz/Samsung Experience
Version Information
Status: Stable
Current Stable Version: BQL1
Stable Release Date: 2017-12-10
Created 2017-12-11
Last Updated 2018-2-1029
Downloads
BQL1 (G950U and G950W)
AP_PartCyborgRom_G950U_BQL1.Part1.zip
[Alternate Mirror]
BL_PartCyborgRom_G950U_BQL1.Part2.zip
[Alternate Mirror]
Other Downloads
Remove OTA apps, downloads and debug messages
Remove RCS and VoLTE Icons Zip (Flash in FlashFire)
Odin3-v3.12-PrinceComsy-.zip
[/SIZE]17
Previous Versions
G950USQU2BQK5
Bootloader Version 2
AP_PartCyborgRom-G950USQU2BQK5_Part1.zip
BL_PartCyborgRom-G950USQU2BQK5_Part2.zip
Alternate Download Links
Bootloader Version 1
AP_PartCyborgRom-BootLoopEdition-G950USQU1AQK3.Part1.zip
BL_PartCyborgRom-BootLoopEdition-G950USQU1AQK3b.Part2.zip
SM-G950W
AP_PartCyborgRom_G950WVLU1AQJ4.Part1.tar.md5.zip
BL_PartCyborgRom_G950WVLU1AQJ4.Part2.tar.md5.zip
SM-G950U AQI6v2
AP_PartCyborgRom-AQI6_Part1.tar.md5.zip
[This was updated from the original Part2]
Download BL_PartCyborgRom-AQI6_Part2r3.tar.md5
9
I will likely release an oreo rom once it is possible to root these devices and run it8UPDATE:
I promised you all an update this past weekend (and hinted at a possible rom), so here it is...
I've been having massive computer trouble. Either my machine or my kitchen is occasionally silently corrupting my ROMs while they are in process. I spent all night on Friday and all night last night, but I Finally nailed it down to the filesystem create in my kitchen (superr's), or sometimes writing the system files to my ssd leaves them and the filesystem corrupted. It finally became apparent enough when my laptop stopped being able to generate a mountable system image. Unfortunately the type of error like this is weird as **** and VERY random. Hardware failures are like quantum ****ing computing, they will dissappear and/or change on you when you go looking for them.
After a loooong night of fighting tooth and nail with the ghost in my machine, I finally was able to coax a 3/4 baked aqk3 rom out of it on my s8! Unfortunately it was just in time to start getting ready for work (lol) so I didn't get any farther than that. I sorta monkeypatched the rest of the rom together at work today and it's now running pretty solid despite not being fully debloated and having some questionable selinux contexts
Anyway I'm rambling again the point is I think I can work around the laptop issue until I figure out wtf is going on (and hopefully get a new laptop from work) and be able to actually build the rom on device which will mean I can still do the s8+. I'm going to try to get as much as I can tonight before I faceplant into my keyboard from exhaustion lol. Maybe, MAYBE I can get a s8 rom out tonight but I don't want to rush it and sacrifice quality. That would mean denying my partial cyborg self and we can't have that...
Oh yeah, the folks over on the n8 thread have officially rooted a n8 running the U2 firmware. This is very good news as it might mean that Sammy failed AGAIN at fixing this root! I'm not calling it battle over just yet though as I personally frequently get stuck unable to boot when running the G95OUSQU1AQK1 primary bootloader with a message I've never seen before and it happens after flashing with SamFail. That being said my **** is so ****ed up right now I don't trust any of it. I will likely need a tester who already has a U2 firmware installed when the time comes so if you mess up and prematurely flash don't ragequit you can still help the cause and maybe you'll get lucky.
Ok back to work with me. More later tonight, cross your fingers and prey to the bootloader gods for good root fortune ?
