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Tips & Tricks

Troubleshoot, find support articles, run tests with the support app directly on your phone.
Read more and discuss the app here.

WARNING: Never Change Radio Band

One time poster
Message 31 of 43
7,870 Views
Message 31 of 43

Re: WARNING: Never Change Radio Band

You've two ways to save yourself from a complete data wipe and a fresh rom install. Works without ROOT access.

 

Option One (universal except for most samsung phones)

 

1. Enable "USB debugging"


2. Download and install adb tool to your PC from "https://androidmtk.com/download-minimal-adb-and-fastboot-tool"


3. Connect your phone to PC with a data cable.
(your phone will be detected by PC at this step. If not download manifacturer drivers)


4. Allow USB debugging


5. Execute the desktop shortcut and type "adb devices" if it returns a number youre good to go.

Input the following

adb reboot bootloader  (If you are already on the bootloader skip this)
fastboot erase modemst1
fastboot erase modemst2

fastboot erase cache (optional but recommended)
fastboot reboot

 

---------------------------------------------------------

This should work.But In case youre still stuck....

 

Option Two (universal except for most samsung phones)

 

1. Download your phone's stock rom. Links: http://www.androidrootguide.com/download-stock-rom-smartphones if you cant find it there..google will come to your rescue just ask for help Face with stuck-out Tongue

 

2. Extract the rom file and identify the modem file namely NON-HLOS.bin (in the unlikely event of having a different filename, figure out what the .bin files contain using google search and copy and use the file that has the modem band information instead of the mentioned file)

 

3. Copy this file to the folder where the adb toolkit is installed (Default :C:\Program Files (x86)\Minimal ADB and Fastboot)

 

4. Connect your phone to PC with a data cable & Allow USB debugging


5. Execute the desktop shortcut and type "adb devices" if it returns a number youre good to go.

Input the following

adb reboot bootloader  (If you are already on the bootloader skip this)

fastboot flash modem NON-HLOS.bin (or "fastboot flash modem filename.bin")
fastboot erase modemst1
fastboot erase modemst2
fastboot erase cache (optional but recommended)
fastboot reboot

 

This should have done the job. You're welcome Slightly smiling Face

One time poster
Message 32 of 43
7,655 Views
Message 32 of 43

Re: WARNING: Never Change Radio Band

Just hard reset the phone.

It will be okay.

I did the same

 

Visitor
Message 33 of 43
7,047 Views
Message 33 of 43

Re: WARNING: Never Change Radio Band


@SiddharthJose wrote:

You've two ways to save yourself from a complete data wipe and a fresh rom install. Works without ROOT access.

 

Option One (universal except for most samsung phones)

 

1. Enable "USB debugging"


2. Download and install adb tool to your PC from "https://androidmtk.com/download-minimal-adb-and-fastboot-tool"


3. Connect your phone to PC with a data cable.
(your phone will be detected by PC at this step. If not download manifacturer drivers)


4. Allow USB debugging


5. Execute the desktop shortcut and type "adb devices" if it returns a number youre good to go.

Input the following

adb reboot bootloader  (If you are already on the bootloader skip this)
fastboot erase modemst1
fastboot erase modemst2

fastboot erase cache (optional but recommended)
fastboot reboot

 

---------------------------------------------------------

This should work.But In case youre still stuck....

 

Option Two (universal except for most samsung phones)

 

1. Download your phone's stock rom. Links: http://www.androidrootguide.com/download-stock-rom-smartphones if you cant find it there..google will come to your rescue just ask for help Face with stuck-out Tongue

 

2. Extract the rom file and identify the modem file namely NON-HLOS.bin (in the unlikely event of having a different filename, figure out what the .bin files contain using google search and copy and use the file that has the modem band information instead of the mentioned file)

 

3. Copy this file to the folder where the adb toolkit is installed (Default :C:\Program Files (x86)\Minimal ADB and Fastboot)

 

4. Connect your phone to PC with a data cable & Allow USB debugging


5. Execute the desktop shortcut and type "adb devices" if it returns a number youre good to go.

Input the following

adb reboot bootloader  (If you are already on the bootloader skip this)

fastboot flash modem NON-HLOS.bin (or "fastboot flash modem filename.bin")
fastboot erase modemst1
fastboot erase modemst2
fastboot erase cache (optional but recommended)
fastboot reboot

 

This should have done the job. You're welcome Slightly smiling Face


 

@siddharth    I just signed up to this Sony forum for only one reason. To thank you Slightly smiling Face Your solution (the first one) worked even though my mobile make is different (Swipe Elite Plus).

Guys,
Follow Siddharth's guideline and you should be able to save yourself from ending up with a brick phone or having to explain to that mobile service person why we selected the USA band in the first place!

just make sure to do the following before you input those commands in the command window:
1) Make sure to install " Android ADB Interface" Driver for your mobile.
2) Make sure to install "Android Bootloader Interface" Driver (also called "Fastboot driver") for your mobile.

The "fastboot erase" commands will NOT work if you do not install the fastboot driver. In other words, if this driver is not present, the "fastboot erase modemst1/st2" commands will just keep waiting in an infinite loop. It will just say <waiting for any device> and will not proceed with deleting the modemst1 or modemst2 folders in our phone that were created when we stupidly selected the USA band Slightly smiling Face

So make sure you do that. Below is a tutorial I stumbled upon, that would help you install the above 2 drivers. The tutorial is pretty long, overdrawn and the suggested software occupies a lot of space. But we can always uninstall these unwanted software (JDK and Android Studio) once we have executed the commands outlined by Siddharth and as soon our phones are back to normal.

Tutorial --> How to Set Up ADB and Fastboot with Android SDK on Windows 7 & Windows 8
                   http://www.teamandroid.com/2012/07/30/how-to-set-up-adb-fastboot-with-android-sdk/

Note: During the fastboot driver installation process (page 3 of the tutorial), if you are unable to get into your phone's "fastboot mode" even after pressing and holding down combinations of volume and power buttons, just make sure you have the "ADB interface driver" mentioned above all set and that the command prompt command "adb services" correctly returns your device number as described in that tutorial. Then, just key in the first command alone, which is:
adb reboot bootloader

This command sends instructions to your phone that puts it in "fastboot mode" or "bootloader mode", which is essential for:
1) Installing the fastboot driver
2) Executing the "fastboot erase modemst1/st2" commands in the command prompt window.

Learner
Message 34 of 43
6,784 Views
Message 34 of 43

Re: WARNING: Never Change Radio Band

Hi,

 

I'm in the same situation after my nephew wanted to show a trick (the testing menu), and pressed United States by accident as well. I only found out the issue hours later when i became unreachable and couldn't call myself as well.

 

As i have too much data i can't backup, a reflash / erase is out of the question..

 

So, tried the ADB way.. 

 

I get this though..

 

C:\Program Files (x86)\Minimal ADB and Fastboot>adb reboot bootloader

 

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase modemst1
erasing 'modemst1'...
FAILED (command write failed (Unknown error))
finished. total time: 0.002s

 

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase modemst2
erasing 'modemst2'...
FAILED (command write failed (Unknown error))
finished. total time: 0.002s

 

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase cache
erasing 'cache'...
FAILED (command write failed (Unknown error))
finished. total time: 0.001s

 

All that works is: fastboot reboot..

 

I'm running Windows 10 1703 and later.

My Xperia Z5 is running 7.1.1 (32.4.A.1.54)

 

I tried both "Minimal ADB and Fastboot" and "platform-tools-latest-windows" and installed the "latest_usb_driver_windows"+Sony .inf file and Driver Signing disabled..

 

It should work without unlocked bootloader, right? (As that will remove DRM, but might also do what i don't want= erasing the Z5..)

 

Do i need other drivers? Is W10 x64 the culprit? (I can install W7 or 8 if needed)

 

Anything that could help me is appreciated.

 

Thanks,

 

allegro16

Visitor
Message 35 of 43
6,760 Views
Message 35 of 43

Re: WARNING: Never Change Radio Band

@allegro16    No, I would not suggest unlocking the bootloader, as it might erase everything on your phone's internal memory.

 

1) Please read my earlier reply to Siddharth (I guess you have and thus the mention of the platform_tools method in your reply)

http://www.teamandroid.com/2016/06/15/install-fastboot-adb-google-usb-drivers-windows/

 

2) Instead of trying out the commands in the Minimal ADB and Fastboot folder (by launching the Minimal ADB and Fastboot tool), please make sure you are trying them out in the platform_tools folder instead, and without launching the Minimal ADB and Fastboot tool. Just do a "shift key+mouse right click" from inside of the platform_tools folder and select "open command window here".

 

3) Make sure you have installed the 2 drivers I had outlined (Android ADB Interface driver and Android Bootloader Interface driver)

 

4) Make sure you follow these steps to install the "Android Bootloader Interface" driver.

    a) Enable USB Debugging in your Phone

    b) Connect your phone to your computer through USB cable

    c) Get into the "fastboot mode" screen of your phone by using key combinations particular to your phone (like holding down power button and volume up or down keys together. Do a Google search to find the correct key combination for your phone's model). If you are not able to get into the fastboot mode by using key combinations, try it by typing the command "adb reboot bootloader" after connecting your phone to your computer through USB cable and when your phone is ON. This command should get your phone into Fastboot mode from backend.

d) Now install the "ADB Bootloader Interface" Driver.

 

5) Open "Device Manager" in your computer.

a) While your phone is ON and you have connected it to your computer, Device Manager should list the driver named "Android ADB Interface" under the section named after your device (or under the section Android Device). Get into the properties window (right click the driver listed in Device Manager) of the driver and make sure it says "this device is working properly".

b) While your phone is connected to your computer and your phone is in fastboot mode, Device Manager should list the driver named "Android Bootloader Interface". Get into the properties window (right click the driver listed in Device Manager) of the driver and make sure it says "this device is working properly".

 

6) Make sure the ADB Interface & Android Bootloader drivers are working properly by typing "ADB Devices" and the "fastboot devices" commands in the command window (as mentioned earlier, open command window from inside of the platform_tools folder) and that it returns the contents similar to the following image, with your device ids for ADB and Fastboot listed. Make sure to type the command "adb reboot bootloader" before trying the "fastboot devices" command. Meaning, this command might not fetch the fastboot devices connected to the computer unless you are in your phone's fastboot mode.

 

 

7) Now you can finally try the actual "modemst1" erase commands oulined by Siddharth earlier. Again, make sure you are in your phone's fastboot mode first (or type the command "adb reboot bootloader") before trying the erase commands.

 

8) Above all, please make sure you have enabled "USB Debugging" in your phone throughout the procedure. Meaning, first connect your phone to your computer, then enable USB Debugging in your phone. Now your phone might display a pop-up that says something of the likes of "a device that uses USB debugging has been connected. Do you want to allow device to connect?". Make your you select to ALWAYS ALLOW the connected device (which is your computer).

 

Without Okay-ing this pop-up on your phone, your computer might not be allowed USB Debugging privileges (or write privileges) to your phone.

 

Hopefully the solution to your problem lies in one of those points I have explained above.

Learner
Message 36 of 43
6,736 Views
Message 36 of 43

Re: WARNING: Never Change Radio Band

Hi, 

 

Thanks for responding.

I tried all ADB versions already, but tried it with a fresh install..

After connecting the Z5, i see the Xperia Z5 under hardware. Tried both installing the ADB driver before and after connecting. I never see the ADB Interface. It just says Xperia Z5. If i try to replace the driver it says it's not better or not compatible or anything.

 

But, if i connect the Z5 and lauch ADB (from the platform_tools folder), i get the correct response from ADB devices.. My phones SN.. 

 

Then i reconnect in fastboot mode (manual or via ADB), i get the "SN + fastboot" again from my Z5..

So obviously ADB anf fastboot work.

 

But once i input "fastboot erase modemst1", or modemst2 and cache, i get 1 of these messages:

 

C:\ADB>fastboot erase modemst1
erasing 'modemst1'...
FAILED (remote: Command not allowed)

finished. total time: 0.016s

 

OR

 

C:\ADB>fastboot erase modemst1
erasing 'modemst1'...
FAILED (command write failed (No error))
finished. total time: 0.003s

 

If i get the first message, i can force the 2nd by selecting "Install" when placing the mouse cursor on the drivers *.INF file..

 

I tried both the standard USB driver as downloaded, and with the *.INF modified by Sony..

Both don't get my anywhere..

 

On XDA they say those ERASE commands don't work with a locked bootloader..

Do note: i tried with a Live USB version of Linux Ubunto as well, as this way i could get around needing an extra driver, etc.. Same result:

 

fastboot erase modemst1
erasing 'modemst1'...
FAILED (remote: Command not allowed)
finished. total time: 0.016s

 

Anything else i can try besides getting a new phone? (As i much rather have a working backup -my Z5- for my data that i can just transfer over.. Instead of a backup that will be incomplete at best (No apps data like Google Authy codes), and having to reset of reset..

 

I KNOW i can get it restored with a full reflash, maybe even a default reset.. But then i 100% lose important data..

 

Sony already told me in chat they see it as a ROM issue and won't help or support--> They pointed at YOUR reply, try that.. Other than that: sorry..

So, the replacement won't be a Sony, i guess. I get just as much (none) support from any other manufactorer.. Maybe even more even..

 

Thanks,

 

allegro16

 

Screenshots

 

Naamloos1.pngIt shows a Xperia Z5Naamloos2.pngAndroid Bootloader InterfaceNaamloos3.pngADB / Fastboot resultsNaamloos4.pngADB / fastboot results, latter after reloading driver (Install) 

One time poster
Message 37 of 43
5,603 Views
Message 37 of 43

Re: WARNING: Never Change Radio Band

Hello 

When i execute "fastboot erase modemst1 "  Im getting an error  FAILED :REMOTE PARTITION IN NOT ALLOWED   please help me with the issue

One time poster
Message 38 of 43
5,431 Views
Message 38 of 43

Re: WARNING: Never Change Radio Band

Select band mode 32 and check your network ....

One time poster
Message 39 of 43
5,313 Views
Message 39 of 43

Re: WARNING: Never Change Radio Band

the best solution is change the motherboard of your phone

One time poster
Message 40 of 43
4,834 Views
Message 40 of 43

Re: WARNING: Never Change Radio Band

Hello to every one as i accidently selected the USA Band in phone information for a no reason i have a proper and aqurite solution of this type of problem we found as i know i have done mistakenly a i realy want to help other to free in thier problems so guys 

 

first relax and charge your phone at 80 to 100 % 

and next download the xperia companion software from Sony`s website  https://support.sonymobile.com/global-en/xperia-companion/#gref

Download as per your PC OR MAC 

and then simply backup your device and i always recommend to enable developer mode and OEM unlocking in sony mobile all xperia series i hope all are understanding my english is so bad but anyways you all are understand 

 

so guys backup your devices and then in Xperia companion software select software update ( IF YOUR DEVICE IS NOT UPDATE THEN SIMPLY UPDATE FORM THIS SOFTWARE)

if already you have update version of your andriod then (

SELECT SOFTWARE REPAIR AND IN DEVICE SELECT TRANSFER FILES OPTION POP UP WHEN DEVICE IS CONNECTED TO PC 

 

AFTER DOING ALL THIS THINGS THE NEW AND LATEST SOFTWARE ARE READY TO DOWNLOAD AND WAIT FOR SOME TIME ITS DOWNLOAD YOUR FIRMWARE AFTER THIS ITS WILL TAKE SEVERAL MINUTES AND  HEYY ITS UNLOCKED AND EVEN NOT VOID ITS WARRANTY OF YOUR ANY SONY DEVICE 

 

 

HOPE THIS METHOD WORK AS IF I ALREADY TRIED WITH MY SONY XPERIA Z5 COMPACT (E5803) 

 

THANKS TO SONY XPERIA COMPANION SOFTWARE SERIOUSLY GUYS IT WILL MAKE YOUR WHOLE DAY 

 

TRY GUYS AND BE HAPPY 

 

SYED KHALID 

INDIA HYDERABAD..