*#*#1027#*#* This Code not work in my Device - Xiaomi Black Shark 2 Questions & Answers

Hi Guys ,
I have black shark 2 skw-h0 model i want to upgrade it to joy ui11.
but this code *#*#1027#*#* not work in my device any solution.
My device is rooted and bt unlocked .

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[Q] enabling calls from an unlocked t mobile galaxy tab!

Hi everyone,
i am in egypt i have an unlocked t mobile galaxy tab i have the unlock code.
but the problem it's dial pad is not enabled, i understood that i can fash it with the euro firmware
my first question is :
will it still be unlocked or the IME will be corrupted and the code i have won't be usefull . i won't be using it on t mobile so i need it to be unlocked.
sec question:
there is a lot of ways out there to fash what is the safest one,
last question:
is there a way i can back everything up so i can roll back in case somthing went wrong?
Thanks alot...nice to be here
Hany

GT-I9305 cm11 4.4 android unlock

hello,
I have a problem . the phone is network locked, and i`m not sure if is posible to unlock it without me going to the network operator to pay and ask to be unlocked.
i tried to unlock it but i can`t use the *#xxxx# codes as no secret/service menu show ip.
i think to downgrade from cm11 4.4 to a stock rom 4.1 but as i read here will not work and even worse will brick the phone ,
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Phone not fully working ( No mobile data ) , Xiaomi Recommend a Re-flash

Hello Techies
On Christmas Day My Redmi 3S Prime gave up the ghost , the Mobile radio refuses to latch onto a 4G Network and can only reliably make a call when a GSM network is selected . This seems a pretty common bug , though I have scoured the solutions ( which seem to work for others ) ; swapping to multiple sims/providers , manually setting APM and Factory Reset , though the phone barely connects to 2G/ Edge Technology . This is a huge inconvenience as I use the phone for both business and personal life - not being able to use it is a royal pain in the ass .
I have contacted Xiaomi who recommend flashing to the official developer ROM Version: 7.12.21 (MIUI9) . I currently have latest MUI Global ROM (8.5) I have tried updating (downgrading ) to an earlier build (8.1) - using the 'upgrade' app on the phone , however this would not work , the device said it could not update to an earlier build . However I will try the developer ROM next , which I guess should work ?
The other option was the fastboot upgrade , which allegedly allows the phone to downgrade to a previous version ( I wanted a stable ROM , I dont really need Dev ROM ) . However the instructions are extremely vague and were written in a different environment (for earlier MUI builds and WIndows 7 ) . When following the official 'Fastboot' flash guide , it transpired that 'download mode' did not work with MUI 8.5 - so it seems the guide is irrelevant
Bottom line currently I am lost on what to do next . I will try the DEV ROM and see how that goes I guess .
After some reading , I am of the understanding that my Bootloader is locked ? I had purchased the phone with the official Global MUI rom installed and have only updated it with OTA official updates previously . I did not want to unlock the bootloader as my banking app (Barclays ) will not install on unlocked devices. I understand unlocking the bootloader also roots the phone .
90Ninety9 said:
After some reading , I am of the understanding that my Bootloader is locked ? I had purchased the phone with the official Global MUI rom installed and have only updated it with OTA official updates previously . I did not want to unlock the bootloader as my banking app (Barclays ) will not install on unlocked devices. I understand unlocking the bootloader also roots the phone .
Click to expand...
Click to collapse
Try flashing the phone in edl mode. I don't think it needs bootloader to be unlocked to do that.
For procedure you can refer Google
Update:
I did manage to update to MUI global 7.12.21 Beta using the Stock updater app . However this did not fix the issue , the phone still connects just with GSM and Edge Networks . I tried all of the existing configuration solutions after the update , which also did not resolve the issue .
I also contacted the Xiaomi Outlet on Aliexpress , they suggest that I unlock the bootloader , as per the email they had sent me
Thanks for telling us the troubles you met. Do not worry. We are here to help you.
Sorry to tell you, the phone you ordered has out of the 6 months free repair warranty.
Please try the suggestions below to try to fix the problem by yourself.
1. pls do Reset of the APN in Settings-Mobile Network-Choose the SIM card-Access Point Names-Reset to default
2. Reset the phone (Please copy your data before you doing this step)
3 download the Develop ROM of your cellphone from http://en.miui.com/download.html, and then transfer this ROM pack the folder ‘downloaded_rom’, then go to Updater APP click the button on the right top corner then choose option “Choose Update Package”, click the develop ROM you just download and wait for the system update succeed
4. If the 2 suggestions above can’t fix the problem,please unlock the phone and then flash it.
http://en.miui.com/unlock/
http://en.miui.com/a-232.html
Hope it is helpful for you.
Click to expand...
Click to collapse
My gut feeling is that this is a hardware issue , it seems as though the radio reciever has burned out . I have already flashed with the native app . Is it worth trying to unlock the bootloader and reflash another rom ?
I dont want to waste any more time on this , any suggestions or thoughts on this are appreciated
So the reseller is asking me to unlock the phone though the Mii Unlock App , then flash it .
How can this make the 4G radio come to life ?
90Ninety9 said:
So the reseller is asking me to unlock the phone though the Mii Unlock App , then flash it .
How can this make the 4G radio come to life ?
Click to expand...
Click to collapse
If you really feel it's a hardware issue, then it's recommended to claim the warranty or replace. I'd suggest you not to go with bootloader unlocking at this stage
---------- Post added at 05:21 PM ---------- Previous post was at 05:20 PM ----------
Also, ask the mods to move this thread to question and answers section.
Try *#*#4636#*#*
Than choose Telp Information1 >> choose type "LTE/WCDMA" or "LTE Only"
Hello
OK I made some progress , I changed the sim Card to an O2 Network Sim which works perfectly . I had tried exhausted all other practicable solution given including the above . This doesn't explain why the phone stopped working with all EE network providers ( tried Virgin , EE, Plusnet ) .
http://en.miui.com/thread-1429676-1-1.html
How can I find out which bands a sim card provider is using ( Live Information ) . I have tried to research this but bands have changed over the years , so not sure which provider is using which band . I wanted to determine which bands the phone will currently work on .

Downgrade android 7.0 to 7.0 old version

Hi everybody
i bought s7 sprint i want to unlock it from use gsm network , my phone version is G930PVPU5BQJ3 , for unlock it i must change to G930PVPU4BQH1 , i no know if i must do just like when we downgrade or their is other method to do that
can you help me please
Brk78 said:
Hi everybody
i bought s7 sprint i want to unlock it from use gsm network , my phone version is G930PVPU5BQJ3 , for unlock it i must change to G930PVPU4BQH1 , i no know if i must do just like when we downgrade or their is other method to do that
can you help me please
Click to expand...
Click to collapse
You are on QJ3? If so, you are out of luck at the moment.

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