Hello,
First off: Yes, i know that Live Demo Units have no modem Hardware. It is NOT my Goal to use a SIM Card or Cellular Network, i ONLY want to use a recent custom ROM on this Wifi-only "phone".
I have a Samsung Galaxy S5 Live Demo Unit and a Samsung Galaxy Note 4 Live Demo Unit. I know that the bootloader on those LDUs is somewhat "locked" for upgrading.
So on the Note 4 LDU the Situation seems like so:
The phone came with Android 4.4, but you could upgrade it to Android 5.0. 5.1 and higher do not work.
I could easily Flash TWRP and Flash ROMs, but new Android Version Custom ROMs require recent bootloader versions for Android 6. So i can Flash those ROMs, but the phone won't boot them up or Crash on Lockscreen (from what i've read about the note 4)
I did not try anything til now, the phone is completely stock. The OTA-Update function of the stock ROM doesn't find any updates.
The Bootloader/PDA Version on this Note 4 LDU is: N910XXXU1ANK3_LLK
CSC is "PAP"
So, but now i have much more positive experience with my S5 LDU (SM-G900X):
This phone is running very reliable throughout the recent AOSP-based custom ROMs. I was running Resurection Remix (Nougat) and now i am even running a stable Android 8.1 ROM! But the bootloader seems as old as on the Note 4: G900XXXU0ANH1_LLK. CSC is "ITV"
Interesting Fact: Knox is NOT tripped
I had an A5 (SM-A500X) for a while here and i had exactly the same experience of what i read in the Internet about the note 4:
TWRP flashed flawlessly, this is never a Problem. But i could not install a recent custom ROM, it kept bootlooping as soon as i rebooted. It never saw anything higher than the stock 4.4. So i gave up and the phone away. So i tried to Flash a new bootloader/Stock ROM on this phone and it always failed at flashing "aboot.mbn" and other bootloader stuff because of "security" Problem. Knox was tripped while flashing TWRP. TWRP works fine for flashing, backing up and restoring.
So i don't understand why the Android 6 and higher is not running on the note 4? There was official Android 6 (Bootloader) Updates for both phones i think? Maybe it is possible to help me to modify an existing Android 7/8 ROM to run on this old Version of the bootloader?
And why is the S5 running Android 8 with such an old bootloader without any Problem if it's such a Problem on the "same year" Note 4?
I am sorry for my bad english, i am from Germany.
I would be glad, if someone could help me out. I really like my Note 4 LDU, but with this laggy and slow Stock 4.4, it's not fun to use at all
hi.
can anybody please tell me how can i downgrade the bootloader of my galaxy s8? its been updated and since then i cannot install android 7.0, i only can use 8.0.0 which i don't really like it.
i want to downgrade the bootloader and install 7.0, or, if this is not possible i just want to reinstall the current bootloader, i think it has some problems. i tried to downgrade it once (not knowing if it possible or not) and i got a fail message in odin. i'm that type who doesn't like errors at all and i just want to reinstall the bootloader corectly. thx
p.s1: sorry for the category of this post, but i'm new on forum, just made the account so it wont let me post anywhere else...
p.s2: sorry for my english, it ain't that good.
teo.tda18 said:
hi.
can anybody please tell me how can i downgrade the bootloader of my galaxy s8? its been updated and since then i cannot install android 7.0, i only can use 8.0.0 which i don't really like it.
i want to downgrade the bootloader and install 7.0, or, if this is not possible i just want to reinstall the current bootloader, i think it has some problems. i tried to downgrade it once (not knowing if it possible or not) and i got a fail message in odin. i'm that type who doesn't like errors at all and i just want to reinstall the bootloader corectly. thx
p.s1: sorry for the category of this post, but i'm new on forum, just made the account so it wont let me post anywhere else...
p.s2: sorry for my english, it ain't that good.
Click to expand...
Click to collapse
you want to go back to nougat from oreo , am i right ? Then try this video, if it doesnt help please reply to me and i am gonna find a solution to you ASAP
1) https://www.youtube.com/watch?v=qqpucWXyfqY
hi. thx, but i did this right (like in the video) many times, and it worked perfectly. now is not working cuz the bootloader was updated, and it won't let me downgrade the firmware anymore. i am still trying to find a way but i don't know if is possible.
i am searching a way to downgrade bootloader and then downgrade the firmware, but i dunno if is possible to downgrade bootloader once it was updated.
i am looking for the same solution. i managed to downgrade to Nougat but cant install custom rom
Can someone help me? I have G950FD which Firmware should I flash for my phone? I am using this model in the US
So no solution to downgrade bootloader version?
Bootloader downgrade for U6 is not available yet (For free)
rilley said:
So no solution to downgrade bootloader version?
Click to expand...
Click to collapse
I have searched the whole web. but, I haven't find the solution to downgrade the bootloader for Binary 6. Well, my phone's OS is dead after upgrading to pie. So, apparently the only way for me and to others who are facing the similar issue is to wait until someone releases Binary 6 combination firmware for SM-G950FD.
Good news: It's easy to get your phone running if your bootloader is not upgraded to binary 6. Cuz, Binary 5 firmwares and combination files are available out there and they are 100% working unless your MB is dead.
Note: I have flashed following stock firmwares successfully through ODIN [INS-G950FXXU6DSK9-20191231094010 and INS-G950FXXS6DTA1-20200120123810] yet no luck. Can't boot the OS. Tried to root the phone, cant able to flash the custom recovery. Nothing just works.
Someone, please tag me if ever finds U6 combination file. That's the only hope to bring back my phone to life.
Hello Everyone
I've been searching for some information regarding galaxy s7 edge at&t but i cannot find specific info related upgrading this phone from nougat 7.0 to oreo 8.0 ? My phone is unlocked so i'm using different carrier but i believe bootloader of the phone is still locked so i cannot flash custom recovery or custom roms. My intention is flashing official oreo 8.0. What is the official oreo for this model ? Actually there are some that i found on the forum but i'm a bit confused which one it is. Is it possible to flash official oreo 8.0 without unlocking bootloader via odin ( people say you cannot unlock bootloader of U.S. versions ) ? If it is possible how can i flash it ? will be appreciated for any suggestions .
Thank you
Search for androidfilehost on google enter the site and search for G935A and you could use the first file , i'm currently using it (you'll need odin if you want to flash it , if you want any help ask) Have fun!
Hello everyone, someone among all those present and absent could inform us of how to revert to the official OREO firmware to a G950F with TWRP and OREO custom Rom ????.
I guess the first step would be to flash a stock recovery and remove the root since it seems that the error is given first by the custom recovery and maybe also the supersu.
This problem we have many users of the S8 that, for trying or for not being satisfied with the custom rooms we want to return to the official romm.
Any advice is appreciated in advance.:fingers-crossed:
Since this topic does not have any "solver", I had no choice but to try to solve it myself and at this moment I have installed the OFFICIAL version G950FXXU4CRJ5_G950FOXM4CRJ3_PHN which is the last one to date from the Samsung ovens.
The only necessary material is the file "] "RMM-State-Bypass.zip" flashed with the TWRP after having deleted the root. That is the solution that has allowed me to return to the official Rom.
you can download your version on the internet if you search and flash it with Odin....look at S8 Guides etc...
im a noob when it comes to this phone and not in the mood to brick it quite just yet so i have a quick question.
im getting the super bad battery drain issue and want to switch to the eu stock rom, im on global rom.
do i have to unlock the bootloader to switch to another region rom or can i just use the XIAOmitool v2 to switch over?
i have 5 days and 4 hours before i can unlock my bootloader and would like to get the rom switched over this weekend.
thank you.
nevermind i will wait guess i do need the unlock.
i cane from samsung and never had to unlock bootloader to switch to the unlocked rom
Xiaomitool can't achieve what you can't already do through adb/fastboot and can't bypass bootloader lock so yes you have to unlock the bootloader to flash a different region stock ROM.
Make sure to NOT relock it afterwards or it'll be a hard brick. Only relock if the ROM is the Global one in your case.