help - Huawei GX8

Hi i have g8 b150 lolipop firmware. It is dual sim phone. I dont understand the firmware naming quite a bit cause i just recently purchase this phone. I downloaded the b340 mm firmware but it said that software update failed after flashing. My question is. Do i have to be in latest lollipop firmware so i can flash mm firmware? Can someone explain to me the firmware naming structure for g8 dual sim and give me the link that suit for g8 dual sim firmware cause i dont want ended bricking my g8
Can someone please help me as well how to root this phone. Ive read the thread about rooting but its not working anymore to unlock bootloader. Any tips?

IzArsha said:
Hi i have g8 b150 lolipop firmware. It is dual sim phone. I dont understand the firmware naming quite a bit cause i just recently purchase this phone. I downloaded the b340 mm firmware but it said that software update failed after flashing. My question is. Do i have to be in latest lollipop firmware so i can flash mm firmware? Can someone explain to me the firmware naming structure for g8 dual sim and give me the link that suit for g8 dual sim firmware cause i dont want ended bricking my g8
Can someone please help me as well how to root this phone. Ive read the thread about rooting but its not working anymore to unlock bootloader. Any tips?
Click to expand...
Click to collapse
Are you sure your phone is Dual Sim ? i think b150 is for single sim check here and follow the correct numbers to update your phone to MM.
As per rooting the phone, you'll need to be more specific about why you are unable to do it, you can't obtain the unlock code ? or you can't get the connection through ADB ? or somethig else ?

ptothej said:
Are you sure your phone is Dual Sim ? i think b150 is for single sim check here and follow the correct numbers to update your phone to MM.
As per rooting the phone, you'll need to be more specific about why you are unable to do it, you can't obtain the unlock code ? or you can't get the connection through ADB ? or somethig else ?
Click to expand...
Click to collapse
Yes im pretty sure my phone is dual sim phone. It has dual sim management on setting. And yes i cant obtained the code. Is there any other way? Can u help me to get the code?

IzArsha said:
Yes im pretty sure my phone is dual sim phone. It has dual sim management on setting. And yes i cant obtained the code. Is there any other way? Can u help me to get the code?
Click to expand...
Click to collapse
Search the forum for the firmware update, Here people were mentioning same version and problems with finding the update
As per the unlock code try this one it goes to Chineese Huawei site if that doesn't work/help try contacting Huaweii support.

ptothej said:
Search the forum for the firmware update, Here people were mentioning same version and problems with finding the update
As per the unlock code try this one it goes to Chineese Huawei site if that doesn't work/help try contacting Huaweii support.
Click to expand...
Click to collapse
I dont find any helping post or detail answer on that thread. For the root i got stuck on step 3. Theres nothing on that website. Is it okay if i request the booloader unlock through email? Found that method on p8 lite forum

IzArsha said:
I dont find any helping post or detail answer on that thread. For the root i got stuck on step 3. Theres nothing on that website. Is it okay if i request the booloader unlock through email? Found that method on p8 lite forum
Click to expand...
Click to collapse
i would give it a shoot and send them an email

ptothej said:
i would give it a shoot and send them an email
Click to expand...
Click to collapse
Already emailed the huawei support but they asked me to just use the website. I really wanted to root this device to use TB. I tried flashing all latest frimware single sim or dual sim version but still no luck updating to MM. So my plan is to just root this phone and flashed RR and flashable stock rom available on the thread via TWRP. Is there any other way to get the bootloader unlock code mate? If there is no way to get the code, i plan to just sell this phone.

I successfully updated to MM now im searching for root. Can someone here help me to get the bootloader activation code using your account? I cannot open the unlock page. Please help me.

Nvm. I already rooted my device

Related

[Q] can I unlock a galaxy s6 edge of t-mobile?

Hello guys,
I bought an galaxy s6 edge in USA of Craigslist
And the guy that sold me told me it is locked but he give me a code to unlock
He paid for the code on the site fishblowunlock
So in the next day I back to brazil and tried to unlock the phone with the code
But it don't work...
Have another way to unlock this?
Thank you and sorry about my bad English
not now
Not now my friend, I think that any developer try to do that.
I found a lot information about this, basics T-Mobile put a block for unlock the phone only with his apk.
In the HTC M9 a solution was flash with a ROM and phone ask about the code and put the code buy for Internet same in Sony Z3 but with the G925T its more difficult.
A solution for the T-Mobile galaxy s6 was install a stock ROM for metro PCs but don't exists for galaxy s6 edge.
I try to install a diferents rom with twrp and always its the same, the phone ask for code but the code is not correct.
The code I bought in eBay. In the stock T-Mobile ROM the phone dont ask for code but I put #xxxxx*637*# and the phone ask for code if the phone is with out Sim card the phone accept the code but when put the Sim card nothing happens but if the phone e is with Sim card the code is not accep.
I think the problem its with the baseband, because always when I flash the phone the baseband don't change, its the T-Mobile baseband.
Maybe some developer need any motivation to do that..
wesley leme said:
Hello guys,
I bought an galaxy s6 edge in USA of Craigslist
And the guy that sold me told me it is locked but he give me a code to unlock
He paid for the code on the site fishblowunlock
So in the next day I back to brazil and tried to unlock the phone with the code
But it don't work...
Have another way to unlock this?
Thank you and sorry about my bad English
Click to expand...
Click to collapse
found a way to do the g925t prompt for unlock code... cellunlocker "dot" net, just look for: upgrading-galaxy-s6-edge-sm-g925t-allow-unlock
But cant see if this was tested...
The firmwate is g925w8 of Canada Telus.
w w w . cellunlocker . net /blog/2015/05/upgrading-galaxy-s6-edge-sm-g925t-allow-unlock
just errase the spaces...
I have not tried this.
tonystn said:
found a way to do the g925t prompt for unlock code... cellunlocker "dot" net, just look for: upgrading-galaxy-s6-edge-sm-g925t-allow-unlock
But cant see if this was tested...
The firmwate is g925w8 of Canada Telus.
w w w . cellunlocker . net /blog/2015/05/upgrading-galaxy-s6-edge-sm-g925t-allow-unlock
just errase the spaces...
I have not tried this.
Click to expand...
Click to collapse
nice info!, i will try inmediatly after arrives my phone, in a few days
not work
truchosky said:
nice info!, i will try inmediatly after arrives my phone, in a few days
Click to expand...
Click to collapse
Don't try this.. Don't work
fabioplata said:
Don't try this.. Don't work
Click to expand...
Click to collapse
what fails ?
ps: here on my country the model 925t is sold too, can i get a firmware from there and try the flash ?
fabioplata said:
Don't try this.. Don't work
Click to expand...
Click to collapse
Try this.
Flash this file (Odexed-Stock Based-ROM-v.1.0+KT-SGS6-Kernel) from here
http://forum.xda-developers.com/gal.../rom-sm-g925f-stock-based-rom-odexed-t3097100
Then flash this kernel http://forum.xda-developers.com/tmo...lopment/kernel-kt-sgs6e-ocv-ktweaker-t3099758
And try to see if it works.
fabioplata said:
Don't try this.. Don't work
Click to expand...
Click to collapse
if cellunlocker net says that you can unlock t-mobile phone using the canadian firmware did you try the firmware of this topic ? (http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841), probably cellunlocker is not trolling (i doubt it, why they delete the answers on his own topic ?) and the firmware on downloadandroidfiles is just broke
truchosky said:
if cellunlocker net says that you can unlock t-mobile phone using the canadian firmware did you try the firmware of this topic ? (http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841), probably cellunlocker is not trolling (i doubt it, why they delete the answers on his onw topic ?) just the firmware on downloadandroidfiles is broke
Click to expand...
Click to collapse
is the process described that doesn't work.. i tried it and just ends in FAIL... this is the same when trying to flash anything else that is not a tmobile firmware....
---------- Post added at 09:47 PM ---------- Previous post was at 09:42 PM ----------
i also unzipped the TAR file and only flashed the boot and system images , flashed correctly and rebooted asking me for unlock code.. but just like when i flash G925F with twrp , the codes are not successful
Its True
truchosky said:
if cellunlocker net says that you can unlock t-mobile phone using the canadian firmware did you try the firmware of this topic ? (http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841), probably cellunlocker is not trolling (i doubt it, why they delete the answers on his own topic ?) and the firmware on downloadandroidfiles is just broke
Click to expand...
Click to collapse
Really, I download his file, but Odin Fail, I make 3 comments, but dont post me.. always said cellunlocker its check your post and never post my comments.
Do you believe??,, its a big topic, a lot of people search about this, one solution and don't comments???
cellunlocker omits a few steps, like s6 edge drivers, or debug mode, did you try the flash following that steps too?, can you flash a "custom rom"?, or the problem is always the same, the error message on odin ? no matter what rom do you use ?
truchosky said:
cellunlocker omits a few steps, like s6 edge drivers, or debug mode, did you try the flash following that steps too?, can you flash a "custom rom"?, or the problem is always the same, the error message on odin ? no matter what rom do you use ?
Click to expand...
Click to collapse
any TAR file that contains modem.bin file will result in FAIL .... in TWRP you can flash customs ROM but in the 3 i tried i always get the unsuccessful code error
TMobile Wins
batillojr said:
any TAR file that contains modem.bin file will result in FAIL .... in TWRP you can flash customs ROM but in the 3 i tried i always get the unsuccessful code error
Click to expand...
Click to collapse
Tmobile Wins... I give up.
fabioplata said:
Tmobile Wins... I give up.
Click to expand...
Click to collapse
did you try this ? http://forum.xda-developers.com/showpost.php?p=60837288&postcount=7
truchosky said:
did you try this ? http://forum.xda-developers.com/showpost.php?p=60837288&postcount=7
Click to expand...
Click to collapse
I did and nope ,, it didnt work
yes
batillojr said:
I did and nope ,, it didnt work
Click to expand...
Click to collapse
Yes, I try all. But nothing works..
fabioplata said:
Yes, I try all. But nothing works..
Click to expand...
Click to collapse
did you try rooting the phone ? and then a custom firmware?, all that too ?
truchosky said:
did you try rooting the phone ? and then a custom firmware?, all that too ?
Click to expand...
Click to collapse
All, rooting, Install twrp flash with all roms, all kernels, all.
Always the same, ask for code but don't work...
Other thing its when I flash a custom ROM the baseband don't change..
But I saw in forums that other user flash the baseband and nothing happens.
Don't works..:crying:
fabioplata said:
All, rooting, Install twrp flash with all roms, all kernels, all.
Always the same, ask for code but don't work...
Other thing its when I flash a custom ROM the baseband don't change..
But I saw in forums that other user flash the baseband and nothing happens.
Don't works..:crying:
Click to expand...
Click to collapse
i will try when my phone arrives, this happens with all s6 edge of t mobile? or only the newers (i bought a day 1)
if that doesnt work then we need to wait the s6 edge firmware.
btw, it is possible to put the s6 metrocps firmware on the s6 edge t-mobile ?
difficult
truchosky said:
i will try when my phone arrives, this happens with all s6 edge of t mobile? or only the newers (i bought a day 1)
if that doesnt work then we need to wait the s6 edge firmware.
btw, it is possible to put the s6 metrocps firmware on the s6 edge t-mobile ?
Click to expand...
Click to collapse
Men I saw black.. I lose my hopes..
I'm wait a month after that I try to sell the phone

[SOLVED! ^_^][H930DS ONLY] V30+ Progress Towards Root/TWRP/ROMs (not achieved yet)

The plight has been answered! We have a solution! Thread has been locked, as we now have a solution! Please visit @ChazzMatt 's posts in this thread for a full description, and link, to the method.
---
G'day everyone!
Much like @mr turtle droid , I've decided to create this sister thread to keep us all informed of the progress towards Root, TWRP, and ROM's for the CARRIER UNLOCKED LG V30+ variant.
At this point in time (15:50, 21st Feb 2018), LG HAVEN'T placed this model on their Unlock list, on the LG Dev website. The LG Models that ARE there are the H930 and the H930G for the Euro market. I've emailed LG Australia about this, and am still waiting on a response, but doubtful I'll get a helpful one. I've also asked on the LGDeveloper twitter page, and received a stock standard response: "We are sorry that we can't be of much help. If there are any changes to the supported devices, we will let you know via our website".
Not being a dev myself, I don't know if any fastboot commands work or not, so if someone can get us going with potential methods, that'd be sweet.
I have a link for the Firmware *.kdz downloads, for what it's worth. Link is found HERE.
If anyone has any ideas, please share them. The more that we know, the closer we get to unleashing the full potential of this great phone.
Also, if someone could explain why exactly LG doesn't unlock all the different models of their flagship, or at least give an ETA for the unbranded one's, that'd be sweet. Is it because of licences, or patents or something? Or is because it's a Dual SIM model? Curious more than anything.
It just seems nuts to me that the V30+ that I bought from JB Hi-Fi wouldn't be on the unlock list, if it's an unbranded / noncarrier variant.
Once again, this is for the carrier UNLOCKED variant, H930DS.
If the bootloader is unlocked on the H930DS then this thread might be a step in the right direction for route
https://forum.xda-developers.com/lg-v30/how-to/looks-root-coming-soon-to-v30-models-t3769157
https://www.xda-developers.com/lg-v30-bootloader-unlock-android-oreo/
Hi, reports on there suggest that only one sim is working after using that method.
Seems like flashing back some partitions from another ds model with lgup could be the solution.
I have been tempted to buy this phone only put off by no root.
Sent from my HTC One_M8 dual sim using XDA Labs
gazzacbr said:
Hi, reports on there suggest that only one sim is working after using that method.
Seems like flashing back some partitions from another ds model with lgup could be the solution.
I have been tempted to buy this phone only put off by no root.
Click to expand...
Click to collapse
Is second sim not working at all, or is it possible to use it as a data connection only?
Hi, I have only had mine for 3 days so haven't tried yet
I think as a H930 single sim unlocked bootloader is loaded, you will only see 1 sim.
Dont quote me on that as I am still reading up
Any experts who can answer?
Both SIMs work for H930DS. Just flash unlock bin and TWRP as described in WTF thread. Need to mention that I've had official H930DS Oreo update prior to attempting this.
Hi, well thats the first time I have seen that stated.
There are no specific instructions for the DS.
Are the one's with only 1 sim just flashing a single sim rom and keeping it for the bands or something?
I have V10e-AME-XX and no Oreo update is showing.
So do I
LGUP to convert to open single sim H930
Adb reboot bootloader
fastboot flash unlock new_unlock.bin
Install Twrp
Then how to get dual sim rom?
Sent from my HTC One_M8 dual sim using XDA Labs
gazzacbr said:
Hi, well thats the first time I have seen that stated.
There are no specific instructions for the DS.
Are the one's with only 1 sim just flashing a single sim rom and keeping it for the bands or something?
I have V10e-AME-XX and no Oreo update is showing.
So do I
LGUP to convert to open single sim H930
Adb reboot bootloader
fastboot flash unlock new_unlock.bin
Install Twrp
Then how to get dual sim rom?
Click to expand...
Click to collapse
Here's an India H930DS user:
mehra1 said:
Everything is working - dual sim, jio internet after root and bootloader unlock. For volte to work on jio one has to install jio4gvoice app and that's it. You have a daily driver and more flexible smartphone.
Click to expand...
Click to collapse
I asked him exactly what he did:
mehra1 said:
I followed your "WTF " procedure
installed the h930 EU 20d rom and
used the new_unlock.bin file.
Click to expand...
Click to collapse
gazzacbr said:
So do I LGUP to convert to open single sim H930
Click to expand...
Click to collapse
I wouldn't flash single sim rom on a dual sim device if I was you. You need to flash Oreo dual sim firmware and then everything is straight forward. Bootloader unlock process as well as flashing TWRP won't effect any fuctionalty and procedure is simple.
crubbish said:
Both SIMs work for H930DS. Just flash unlock bin and TWRP as described in WTF thread. Need to mention that I've had official H930DS Oreo update prior to attempting this.
Click to expand...
Click to collapse
crubbish said:
I wouldn't flash single sim rom on a dual sim device if I was you. You need to flash Oreo dual sim firmware and then everything is straight forward. Bootloader unlock process as well as flashing TWRP won't effect any fuctionalty and procedure is simple.
Click to expand...
Click to collapse
But you had to flash H930 to get bootloader unlock. You seem to be contradicting yourself... please clarify?
The India H930DS guy did it this way:
mehra1 said:
Everything is working - dual sim, jio internet after root and bootloader unlock. For volte to work on jio one has to install jio4gvoice app and that's it. You have a daily driver and more flexible smartphone.
Click to expand...
Click to collapse
I asked him exactly what he did:
mehra1 said:
I followed your "WTF " procedure installed the h930 EU 20d rom and used the new_unlock.bin file.
Click to expand...
Click to collapse
Hi, still not quite getting it
Is H930 eu 20d a dual sim rom then?
Otherwise what exactly is "Oreo dual sim firmware"
"Quote:
Originally Posted by crubbish 
I wouldn't flash single sim rom on a dual sim device if I was you. You need to flash Oreo dual sim firmware"
Yes, that's what I am trying to clarify.
Just a bit paranoid about accidently flashing a singles sim rom as I have had this worry on my M8
OK, hang on, just searching around, is it this?
[H930DS][STOCK][OREO]LG V30+ Hong Kong HH93020DS
V30+ 930DS Hong Kong H930DS20n_00_OPEN_HK_DS_OP_0416.kdz
https://forum.xda-developers.com/lg-v30/development/h930ds-lg-v30-hong-kong-hh93020ds-t3782935
but probably not this as its for single sim only?
[H930][STOCK][OREO]LG V30 European open market H930 H93020d_00_OPEN_EU_OP_0326.kdz
H93020d_00_OPEN_EU_OP_0326.kdz
2.94GB
For H930, H930G, >>H930DS. <<
https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076
Sent from my HTC One_M8 dual sim using XDA Labs
I have a H930DS flashed with H930 firmware. It's rooted with Magisk installed. Both SIM slots are working. Both data and calls are fine.
I used the H93020d_00_OPEN_EU_OP_0326.kdz firmware.
The phone is still identified as a H930DS and the software version is called V20d-GLOBAL-COM
https://imgur.com/a/W0Xx8BJ
johanruda said:
I have a H930DS flashed with H930 firmware. It's rooted with Magisk installed. Both SIM slots are working. Both data and calls are fine.
I used the H93020d_00_OPEN_EU_OP_0326.kdz firmware.
The phone is still identified as a H930DS and the software version is called V20d-GLOBAL-COM
https://imgur.com/a/W0Xx8BJ
Click to expand...
Click to collapse
DOH! just when I thought I understood this, lol
I just flashed the "V30+ 930DS Hong Kong H930DS20n_00_OPEN_HK_DS_OP_0416.kdz"
I have 8.0.0, build number is the same as yours, software version is V20n-GLOBAL-COM (yours is V20d...)
and adb devices shows ok,
then adb reboot bootloader is ok,
I get the fastboot screen but then no connection from fastboot
fastboot oem device-id just gives me < waiting for device >
johanruda said:
I have a H930DS flashed with H930 firmware. It's rooted with Magisk installed. Both SIM slots are working. Both data and calls are fine.
I used the H93020d_00_OPEN_EU_OP_0326.kdz firmware.
The phone is still identified as a H930DS and the software version is called V20d-GLOBAL-COM
https://imgur.com/a/W0Xx8BJ
Click to expand...
Click to collapse
Thank you. So you flashed the H930 Oreo KDZ. Just like the instructions say in the WTF thread.
To me, the only way for H939DS users to do this is to flash H9390 and run the command. One India H930DS user says that is what he has done and he has BOTH SIMS. Now you have confirmed it. That's two H930DS users who have bootloader unlocked and rooted, just like I said they could do -- and they both retained dual SIM functionality. Every V30/V30+ can be bootloader unlocked and rooted, except for the T-mobile H932.
Even @crubbish seems to infer that but he contradicted himself -- saying he didn't flash the H930 firmware, which I'm pretty sure HE HAD to -- which is frustrating.
hmm, so I have just re-run LGUPP and device is recognized this time but I get and error 0x8... Please us latest dll LAF protocol version is not match
Do I need to go back down to nougat and them back up again?
gazzacbr said:
hmm, so I have just re-run LGUPP and device is recognized this time but I get and error 0x8... Please us latest dll LAF protocol version is not match
Do I need to go back down to nougat and them back up again?
Click to expand...
Click to collapse
No, the H930 variants (which include the HD30DS) do NOT need to downgrade to Nougat.
You just need to figure out how to install and use the LGUP.
---------- Post added at 07:52 AM ---------- Previous post was at 07:34 AM ----------
crubbish said:
Both SIMs work for H930DS. Just flash unlock bin and TWRP as described in WTF thread. Need to mention that I've had official H930DS Oreo update prior to attempting this.
Click to expand...
Click to collapse
crubbish said:
I wouldn't flash single sim rom on a dual sim device if I was you. You need to flash Oreo dual sim firmware and then everything is straight forward. Bootloader unlock process as well as flashing TWRP won't effect any fuctionalty and procedure is simple.
Click to expand...
Click to collapse
@crubbish, I'm sorry but you seem to be contradicting yourself. Please clarify. You either used the WTF instructions or you didn't.
I WROTE the instructions for the WTF thread and they clearly say all H930 variants -- which included the H930DS -- needs to flash the H930 Oreo KDZ to get the fastboot flash commands. So, unless you are saying you somehow managed to enable those commands some other way (and H932 T-mobile users would be all ears for that!), then you did indeed flash the H930 Oreo KDZ, did you not?
Two other H930DS users -- at least one from India -- have used the WTF method, of course flashing the HD30 Oreo KDZ -- and they are bootloader unlocked, have TWRP custom recovery, rooted, and have dual SIM functionality.
Unless you have figured out some other way, THAT is also exactly what you did.
More information:
mehra1 said:
I couldn't control my flashing eagerness when i saw @ChazzMatt and @TxanMoe has made it possible to root amd unlock the bootloader, so I had to try.
You should follow this link and all will be clear and easy
https://forum.xda-developers.com/lg-v30/help/wtf-lg-v30-t3790500
Click to expand...
Click to collapse
Thank you.
gazzacbr said:
DOH! just when I thought I understood this, lol
I just flashed the "V30+ 930DS Hong Kong H930DS20n_00_OPEN_HK_DS_OP_0416.kdz"
I have 8.0.0, build number is the same as yours, software version is V20n-GLOBAL-COM (yours is V20d...)
and adb devices shows ok,
then adb reboot bootloader is ok,
I get the fastboot screen but then no connection from fastboot
fastboot oem device-id just gives me < waiting for device >
Click to expand...
Click to collapse
If you've connected the phone to a USB3 port, try a USB2 port instead. That usually works.
Also, if you're not using the cable that came with the phone, try that as well.
gazzacbr said:
hmm, so I have just re-run LGUPP and device is recognized this time but I get and error 0x8... Please us latest dll LAF protocol version is not match
Do I need to go back down to nougat and them back up again?
Click to expand...
Click to collapse
No, you need a newer DLL for LGUP which can be found in this thread: https://forum.xda-developers.com/lg-v30/development/lgup-oreo-dll-file-v30-t3779441
Put it in the C:\Program Files (x86)\LG Electronics\LGUP\model\common (create the "common" folder if it's not present). Start LGUP WITHOUT Uppercut.
johanruda said:
If you've connected the phone to a USB3 port, try a USB2 port instead. That usually works.
Also, if you're not using the cable that came with the phone, try that as well.
No, you need a newer DLL for LGUP which can be found in this thread: https://forum.xda-developers.com/lg-v30/development/lgup-oreo-dll-file-v30-t3779441
Put it in the C:\Program Files (x86)\LG Electronics\LGUP\model\common (create the "common" folder if it's not present). Start LGUP WITHOUT Uppercut.
Click to expand...
Click to collapse
Thank you.
Besides trying a different USB port or different cable, also try to enter download mode manually (power off completely, then hold volume up button while plugging in USB cable), THEN open LGUP to make it recognize your phone.
Also, try a different computer if none of those suggestions work.
ChazzMatt said:
@crubbish, I'm sorry but you seem to be contradicting yourself. Please clarify. You either used the WTF instructions or you didn't.
Click to expand...
Click to collapse
I've had Oreo OTA flashed on my H930DS after which I've followed WTF procedure without flashing any other firmware. Sorry if I wasn't clear on this.
It looks to me that as long as you're on official Oreo firmware you can appy unlock.bin straight away, no need to pre-flash any other firmware. Also someone has reported on losing dual sim functionality after flashing plain H930 firmware, that's why I think it's safer to flash specific dual sim rom for dual sim devices.

Unlocking vs Unlocked Device

I purchased an att gs9+ directly from samsung, after that, I installed the unlocked firmware. Up to this point, I have used an att sim. When I tried to use a tmobile sim recently, I got a message saying "Invalid SIM card inserted - This SIM card is not supported. I was surprised as I thought it was unlocked since I installed the firmware. I then tried to install a version of the ATT firmare thinking I perhaps still needed to unlock it? At any rate, I tried but ODIN gave me the following error: FAIL!(auth).
So, first question is - If I installed unlocked firmware on my att gs9+, is it truly unlocked?
Second question, can I install the att version back again? Or perhaps the tmobile?
Finally - what does the ODIN error mean?
Thanks for taking the time to read,
Ben
benjiesell said:
I purchased an att gs9+ directly from samsung, after that, I installed the unlocked firmware. Up to this point, I have used an att sim. When I tried to use a tmobile sim recently, I got a message saying "Invalid SIM card inserted - This SIM card is not supported. I was surprised as I thought it was unlocked since I installed the firmware. I then tried to install a version of the ATT firmare thinking I perhaps still needed to unlock it? At any rate, I tried but ODIN gave me the following error: FAIL!(auth).
So, first question is - If I installed unlocked firmware on my att gs9+, is it truly unlocked?
Second question, can I install the att version back again? Or perhaps the tmobile?
Finally - what does the ODIN error mean?
Thanks for taking the time to read,
Ben
Click to expand...
Click to collapse
SIM unlock is a completely separate thing which you'd need to use an unlocking service for, nothing to do with the firmware
Check the bootloader version your phone is running now, vs the one you're trying to flash, you cannot downgrade the BL
Download mode will show BL:1 or BL:2)
Firmware shows it here
G960FXXU2BRGA
Flash an equal or higher BL
*Detection* said:
SIM unlock is a completely separate thing which you'd need to use an unlocking service for, nothing to do with the firmware
Check the bootloader version your phone is running now, vs the one you're trying to flash, you cannot downgrade the BL
Download mode will show BL:1 or BL:2)
Firmware shows it here
G960FXXU2BRGA
Flash an equal or higher BL
Click to expand...
Click to collapse
Ok, thanks for the response.
I can see that my bootloader version is 3. I dont see any ATT versions out there for 3 though. Am I correct in thinking that I would need an ATT firmware to even get the sim card unlock prompt? Thats really the issue for me.. I am unable to unlock the device despite trying to reinsert, and running those #XXX*# codes.
benjiesell said:
Ok, thanks for the response.
I can see that my bootloader version is 3. I dont see any ATT versions out there for 3 though. Am I correct in thinking that I would need an ATT firmware to even get the sim card unlock prompt? Thats really the issue for me.. I am unable to unlock the device despite trying to reinsert, and running those #XXX*# codes.
Click to expand...
Click to collapse
nvm...Im not sure if by dumb luck, or putting on several firmwares and clearing things out.. it finally prompted me. wtf...
Thanks for the advice. I learned a few things about the firmware.
benjiesell said:
nvm...Im not sure if by dumb luck, or putting on several firmwares and clearing things out.. it finally prompted me. wtf...
Thanks for the advice. I learned a few things about the firmware.
Click to expand...
Click to collapse
Good stuff :good:

Need Android Pie firmware details for Unlocked T-Mobile Samsung S9

Hi All,
I have Samsung S9 Unlocked T-mobile from US and currently in India. Currently i have Oreo Version.
As all know, it doesnt have VOLTE option enabled which is needed for my sim network for voice calls to go through.
Somewhere i read Pie update will have VOLTE option and hence i am trying to update to Pie update.
I downloaded G960USQS6CSGB firmware for T-mobile, but before upating firmware using Odin, i got doubt if it will stick to T Mobile after update. This will make my phone not usable in India.
I tried to check online, but couldnt get direct answer and hence posting in new thread.
Can someone help clarify if it will lock the mobile to T-Mobile or will the phone be still in unlocked state?
Also i see two CSC files in the firmware folder. CSC and HOME_CSC. Which one to use?
If I should update with some other firmware for being unlocked and yet to get PIE update, please point to required firmware name or links.
Also will updating to PIE update will have VOLTE option ? Kindly confirm.
Thanks in Advance.
abalanag said:
Hi All,
I have Samsung S9 Unlocked T-mobile from US and currently in India. Currently i have Oreo Version.
As all know, it doesnt have VOLTE option enabled which is needed for my sim network for voice calls to go through.
Somewhere i read Pie update will have VOLTE option and hence i am trying to update to Pie update.
I downloaded G960USQS6CSGB firmware for T-mobile, but before upating firmware using Odin, i got doubt if it will stick to T Mobile after update. This will make my phone not usable in India.
I tried to check online, but couldnt get direct answer and hence posting in new thread.
Can someone help clarify if it will lock the mobile to T-Mobile or will the phone be still in unlocked state?
Also i see two CSC files in the firmware folder. CSC and HOME_CSC. Which one to use?
If I should update with some other firmware for being unlocked and yet to get PIE update, please point to required firmware name or links.
Also will updating to PIE update will have VOLTE option ? Kindly confirm.
Thanks in Advance.
Click to expand...
Click to collapse
csc will factory reset your phone, home_csc wont
volte wasnt removed from pie, so that shouldnt be an issue
the firmware version you posted has the 6th bootloader revision, im betting here is a 7th available for your phone, but the 6th version should be fine as well
as far as the unlocked state of the phone goes, it shouldnt re-lock, but im paranoid lol. Have you looked into the U1 versions of the phones firmware? Theyre inherently unlocked firmwares and dont have any of that irritating bloatware **** in them
youdoofus said:
csc will factory reset your phone, home_csc wont
volte wasnt removed from pie, so that shouldnt be an issue
the firmware version you posted has the 6th bootloader revision, im betting here is a 7th available for your phone, but the 6th version should be fine as well
as far as the unlocked state of the phone goes, it shouldnt re-lock, but im paranoid lol. Have you looked into the U1 versions of the phones firmware? Theyre inherently unlocked firmwares and dont have any of that irritating bloatware **** in them
Click to expand...
Click to collapse
Thanks youdoofus the inputs. Say by chance if it gets locked, is there a way to unlock the phone again from here?
may be then i will try to load U1 versions otherwise. Thanks alot.
abalanag said:
Thanks youdoofus the inputs. Say by chance if it gets locked, is there a way to unlock the phone again from here?
may be then i will try to load U1 versions otherwise. Thanks alot.
Click to expand...
Click to collapse
if it has no financial obligation to any carrier and the phone locks to that carrier, then the carrier it locked to would be required to release it. I cant imagine how it would lock to t-mob tho
Factory unlocked phones stay unlocked, no matter what firmware you flash.
Carrier locked phones that were properly unlocked by the carrier (they provide the code to SIM unlock the phone) will stay unlocked, again, no matter what firmware you flash to it - as long as it's compatible. Flashing the wrong firmware may just brick the phone. But, at least it's still SIM unlocked.
Phones that had some kind of software hack installed to trick the phone into thinking it's unlocked will lose the unlock status when you flash a firmware that also wipes the phone. Then it will come back as carrier locked again, because the hack is gone.
That last case is the only case I know of that will "re-lock" a phone. I've never heard of a carrier unlocked phone spontaneously re-locking under any circumstance.
Hi,
Thanks for the details. I tried to flash G960U1UES6CSG4_G960U1OYM6CSG4_XAA firmware. But while loading AP file in ODIN, it gave some error. Couldnt understand what is the error as its in chinese.
Then i loaded G960USQS6CSGB_G960UOYN6CSGB_TMB firmware which i downloaded previously. This got loaded in ODIN without any issues. And i am able to flash to phone. On rebooting, saw that phone moved to Pie version.
But i couldnt find VOLTE option (Enhanced calling) option. Does anyone know which version will enable that option?
Or anyother way to enable that please.
Thanks in advance.
joeldf said:
Factory unlocked phones stay unlocked, no matter what firmware you flash.
Carrier locked phones that were properly unlocked by the carrier (they provide the code to SIM unlock the phone) will stay unlocked, again, no matter what firmware you flash to it - as long as it's compatible. Flashing the wrong firmware may just brick the phone. But, at least it's still SIM unlocked.
Phones that had some kind of software hack installed to trick the phone into thinking it's unlocked will lose the unlock status when you flash a firmware that also wipes the phone. Then it will come back as carrier locked again, because the hack is gone.
That last case is the only case I know of that will "re-lock" a phone. I've never heard of a carrier unlocked phone spontaneously re-locking under any circumstance.
Click to expand...
Click to collapse
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
---------- Post added at 02:42 PM ---------- Previous post was at 02:36 PM ----------
abalanag said:
Hi,
Thanks for the details. I tried to flash G960U1UES6CSG4_G960U1OYM6CSG4_XAA firmware. But while loading AP file in ODIN, it gave some error. Couldnt understand what is the error as its in chinese.
Then i loaded G960USQS6CSGB_G960UOYN6CSGB_TMB firmware which i downloaded previously. This got loaded in ODIN without any issues. And i am able to flash to phone. On rebooting, saw that phone moved to Pie version.
But i couldnt find VOLTE option (Enhanced calling) option. Does anyone know which version will enable that option?
Or anyother way to enable that please.
Thanks in advance.
Click to expand...
Click to collapse
if your Odin error messages are in Chinese, youve obtained a modified version. Itll probably work, but youll get that Chinese stuff whenever it needs to tell you anything. I dont know which versions have volte tbh. Sorry man.
youdoofus said:
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
---------- Post added at 02:42 PM ---------- Previous post was at 02:36 PM ----------
if your Odin error messages are in Chinese, youve obtained a modified version. Itll probably work, but youll get that Chinese stuff whenever it needs to tell you anything. I dont know which versions have volte tbh. Sorry man.
Click to expand...
Click to collapse
Thanks youdoofus for trying to help. For me atleast it didnt get locked when i moved to Pie. I will try other methods.
I will try to root the phone for enabling volte, but the methods that i tried didnt work.
youdoofus said:
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
Click to expand...
Click to collapse
That's just weird.
joeldf said:
That's just weird.
Click to expand...
Click to collapse
yeah, sort of. The CSC's on these things are weird. Im starting to believe that these new versions of android are just like windows ISOs where they have all the versions compressed into one file and it uses a directory file to tell the firmware which version to install. Im sure a code writing dev can confirm or deny this thought, but at this point its merely a weak theory
2019-10-08_21:17:56 Device Info:
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product.board : sdm845
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product.model : SM-G960U
product.name : starqltesq
Time Used: 2.00 s

Flashing custom rom or rooting remove network lock?

would just want to know by any chance if flashing another rom pr rooting the device will remove the network lock of my carrier?
Thank you
I need a method to unlock the device, tried a lot of paid services already,most of them dont have an unlock code yet for my device and some sent me a wrong unlock code
stephenjason89 said:
would just want to know by any chance if flashing another rom pr rooting the device will remove the network lock of my carrier?
Thank you
I need a method to unlock the device, tried a lot of paid services already,most of them dont have an unlock code yet for my device and some sent me a wrong unlock code
Click to expand...
Click to collapse
As far as I'm aware NO it won't remove carrier lock, you'll just have to wait for that to become available......:good:
No it won't work
Thank you
any reliable unlocking companies?
stephenjason89 said:
Thank you
any reliable unlocking companies?
Click to expand...
Click to collapse
The most reliable unlocking company would be the carrier itself
Sent from my SM-G985F using Tapatalk
Hi
I made a stupid mistake with my G988B, its were not working well, so I decided install a stock rom, but downloaded and installed o last version of software from another country (G988BXXS2ATD5, XEF ) whit Security Level Patch of may 1, 20.
After installed new stock rom, my phone ask for Network Unlock Code.
When realized of my mistake, tried reinstall orignal version of firmware (G988BXXU1ATCT, PGU) but nothing work for me. I have tried to flash with Odin, but always, process stop in "flashing vbmeta.img."
I have read a lot tread trying figure out my problem like: https://forum.xda-developers.com/galaxy-s20/how-to/howto-root-s20-series-upgrade-firmware-t4079353/post82220417#post82220417
There is a way to come back original stock rom and then trying unlock network?
Could this process work in my case without damaging my phone?
Thanks.
Samkey can unlock phone with 1 or 2 credits
mikey_sk said:
Samkey can unlock phone with 1 or 2 credits
Click to expand...
Click to collapse
Thanks por your answer, but I did it.
It doesnt work.
Samkey is the only way to unlock a Samsung phone other than getting the network unlock code from the network or third party. You must know what you are doing. Google the process. If that doesn't work then there is an issue here that needs further investigation. Also ensure your active csc code is the one that was originally on the phone as well as stock rom. Sam key can be used to change csc as well.
Good luck
mikey_sk said:
Samkey is the only way to unlock a Samsung phone other than getting the network unlock code from the network or third party. You must know what you are doing. Google the process. If that doesn't work then there is an issue here that needs further investigation. Also ensure your active csc code is the one that was originally on the phone as well as stock rom. Sam key can be used to change csc as well.
Good luck
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Thanks mikey_sk,
My problem is that both the csc code and the stock rom are not the original ones. Therefore I am looking for a guide to help me how to get back to the stock rom.
I have read that the problem is, the security patch that I installed as it is newer than the one I am trying to reinstall. I will keep trying.
I understand that so far there is no way to go back from binary 2 to binary 1.
Any help is appreciated.
Hzuniga said:
Thanks mikey_sk,
My problem is that both the csc code and the stock rom are not the original ones. Therefore I am looking for a guide to help me how to get back to the stock rom.
I have read that the problem is, the security patch that I installed as it is newer than the one I am trying to reinstall. I will keep trying.
I understand that so far there is no way to go back from binary 2 to binary 1.
Any help is appreciated.
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this is y u shouldnt mess with stuff if u dont kno what ur doing or how to fix it
elliwigy said:
this is y u shouldnt mess with stuff if u dont kno what ur doing or how to fix it
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Click to collapse
Ok,
Thanks.
No more questions.
You can always use the sim slot 2, it is usually not locked.
I suggest you change the csc to a stock one using Sam key. Make sure you enable USB debugging in developer settings otherwise Sam key won't work. After that dowload the most recent stock rom for that device from sammobile and flash in ODIN but DO NOT use HOME_CSC so it can do a full wipe and rebuild the firmware. As an added measure as soon as installed go into recovery and do a full wipe. If network is still locked try unlocking it with samkey
stephenjason89 said:
would just want to know by any chance if flashing another rom pr rooting the device will remove the network lock of my carrier?
Thank you
I need a method to unlock the device, tried a lot of paid services already,most of them dont have an unlock code yet for my device and some sent me a wrong unlock code
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Click to collapse
Unfortunately for it, you mentioned only sim1 is blocked and you still can use sim2.
This is not network lock but rather imei blacklist.
The only way to fix this is to pay your telco bills from where you purchased the phone. If it's a used phone, I would get a refund. There is no roms you can use that can fix it as it's blacklisted from the telcos.
There is only 2 reasons it is locked.
1. You didn't pay your installment bills.
2. The phone is reported as stolen.
If you purchased a used phone, get a refund.

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