Database Develop

[Q] *#*#4636#*#* gsm/umts bands

I have been trying different ROMs like SimKat and CM since 4.4.4 however since a month ago, I have not been able to connect to the mobile network here in Korea. The phone does connect for about an hour after flashing the ROM but then will not connect after an hour until I flash the ROM on the phone again (any ROM via FlashTools).
Only recently, I have noticed that in my secret menu *#*#4636#*#*, I have noticed all my options have disappeared for selecting the GSM/UMTS bands. I used to have USA, EURO, Japan, Korea and 1 other. Now I only have USA which I assume is what is stopping me from getting on the network. How do I get all my regional band options again? I really don't want to buy another phone.

Yeah I got the same problem too! Please help us! Thanks!

Bump! Please anyone can help us about this? Thanks!

Anyone, pls go to Cross-development project section and see thread" Unlock band...."
Currently only works with wcdma band, lte are still research

kuramamickey said:
Bump! Please anyone can help us about this? Thanks!
Click to expand...
Click to collapse
Sure you havent managed to wipe your TA partition? Restore your backed up TA or download and install stock ROM from Sony.

SOLVED
Thank you guys for the support. I managed to fix the problem by Restore Factory on my mobile.
Thanks again!

Do you need to change IMEI for 4G to work on K50-t3s

Hello
I have a K3 note, version K50-t3s, running Android 5.1
I'm planning to flash it to Android 6 (haven't decided which ROM. I was thinkig of Ghost, but if anyone has any recommendations, let me know). It currently works with 4G FDD with both SIM slots, and I need to keep this function.
I read on a French forum that you need to change the IMEI after flashing so that it will work on 4G, but I haven't found any explanation of why that should be.
So, do you really need to change the IMEI, and if so, why?
Thanks.

LTE network in Canada

Hello Everyone
I have Le 2 x526 when i use stock rom it dones not allow me to add lte apn hence my LTE doesn't work , if install custom rom LTE works without any problem,
please tell me why it is happening, if anyone enable lte band on stock rom,
Thanks
Rajeev

rajubhayana said:
Hello Everyone
I have Le 2 x526 when i use stock rom it dones not allow me to add lte apn hence my LTE doesn't work , if install custom rom LTE works without any problem,
please tell me why it is happening, if anyone enable lte band on stock rom,
Thanks
Rajeev
Click to expand...
Click to collapse
Use RR Rom.

Some questions about the Sprint Note 5

Hello everyone!
I got the sprint note 5 running android nougat a few days ago but i'm having a problem... I doesn't let me use 4G Lte and that is a must for me. (Because of how data plans are here). I did some research regarding this device and it seems like its identical to the international note 5 which made me assume that the only thing blocking me from the 4g is the system installed in this phone. What i want to know is: Will i have 4G/LTE if i flash twrp and install a custom rom? The band i need is B7 (2600).
Your help would mean a lot.
Thanks!
PS: If I can't get this to work with 4g ill have to get a verizon note 5 which, from my past experience with verizon devices should have a locked bootloader and pretty much i'll be stuck to android 7.0 :crying:

-Configure your APNs and reboot
-Get your phone unlocked by Octoplus box
-Yeah, you could try a custom ROM

4G not working in A1

Hi! 4G isnt working on my Mi9 with A1 network but they use the suported frequencies. I tried reseting APN and some other changes in developer options nothing worked. Any idea?
I'm gona try and flash the ROM when I unlock it from CN to global or EEA. which one should I chose if there is any big difference?

urbyx said:
Hi! 4G isnt working on my Mi9 with A1 network but they use the suported frequencies. I tried reseting APN and some other changes in developer options nothing worked. Any idea?
I'm gona try and flash the ROM when I unlock it from CN to global or EEA. which one should I chose if there is any big difference?
Click to expand...
Click to collapse
Which variant do you have? if it's the alita / explorer / transparent edition (8/256GB or 12/256GB) then there's NO BAND 20, which is LTE for many providers. Have you checked this?
EDIT: see here, perhaps you're in an area that doesn't use band 7 and only band 20? If this is the case... No ROM you flash can alter that, it's hardware related. ONLY global devices (64/128GB) support band 20

reg66 said:
Which variant do you have? if it's the alita / explorer / transparent edition (8/256GB or 12/256GB) then there's NO BAND 20, which is LTE for many providers. Have you checked this?
EDIT: perhaps you're in an area that doesn't use band 7 and only band 20? If this is the case... No ROM you flash can alter that, it's hardware related. ONLY global devices (64/128GB) support band 20
Click to expand...
Click to collapse
I have transparet ediotion 8/256gb. Checked there is no band 20 in my area but 4g works everywhere else
Should I still flash the ROM to global or eea? Can I relock it after or is it gona brick..

urbyx said:
I have transparet ediotion 8/256gb. Checked there is no band 20 in my area but 4g works everywhere else
Should I still flash the ROM to global or eea? Can I relock it after or is it gona brick..
Click to expand...
Click to collapse
Do not relock bootloader after flashing rom, it will most likely brick your device. Flash another ROM if you like but you won't get band 20

May I ask, why do you want to relock bootloader after flashing a new ROM?