account arrowhead-down arrowhead-up mobile-menu search sm-bold-x x-skinny-rounded x-skinny arrowhead-right social-facebook social-googleplus social-instagram social-linkedin social-pinterest social-qzone social-renren social-tencent social-twitter social-vkontakt social-weibo social-youku social-youtube

Please help us improve our website

Take our customer survey to evaluate your visit.

It should only take a few minutes to answer five quick questions. Just click the Launch survey button at the end of your visit to begin.

cancel
Showing results for 
Search instead for 
Did you mean: 
Tips & Tricks

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

WARNING: Never Change Radio Band

Highlighted
Enthusiast
Message 11 of 42
13,413 Views
Message 11 of 42

Re: WARNING: Never Change Radio Band

Just to repeat that there is a solution, i.e., a way to recover from selecting the wrong radio band.

One has to create a backup of the phone, factory reset it, and then restore the backup.

Obviously the factory reset on its own works as well, but most would probably want the "fix" to have the least possible impact, hence the recommendation to make a backup first.

Note that a backup does not cover everything, so for instance you may want to record how you placed your app icons, or other configuration details that may not will be restored.
Visitor
Message 12 of 42
13,277 Views
Message 12 of 42

Re: WARNING: Never Change Radio Band

Well I admit I did it. And used 4 hours before I found this description. Thanks TomKay.
To Feel. By 'android user' do you mean rooted on th phone?
My phone is not rooted so I guess I have to take the long road.
My reason for being in the interesting menus was That I find that my phone does not function as well with 🍭 on.
Is there any new fix for this btw?
Visitor
Message 13 of 42
13,279 Views
Message 13 of 42

Re: WARNING: Never Change Radio Band

Sorry not Feel but Feek
Apprentice
Message 14 of 42
13,056 Views
Message 14 of 42

Re: WARNING: Never Change Radio Band

The easiest solution is flashing the baseband with flashtool... worked for me, no data were effected

One time poster
Message 15 of 42
12,373 Views
Message 15 of 42

Re: WARNING: Never Change Radio Band

Thank you for mentioning this problem
I'm from Tunisia and yesterday I had the same problem, I pressed the button accidently and you can't change it after that Face with rolling Eyes

 

Now, in the current time, I'm going to copy the files from the internal memory then restore the phone (factory reset). 
I hope I will a signal back ...

Visitor
Message 16 of 42
11,300 Views
Message 16 of 42

Re: WARNING: Never Change Radio Band

It works I was also suffering from that issue...
i did same procedures and signal came back but lost my SIM which was in slot one....
SIM in slot 1 got blocked....
Sim got blocked only on my mobile  phone...
but was operating well in other mobile phones...
bought duplicate SIM and then now its working good.....

Learner
Message 17 of 42
11,225 Views
Message 17 of 42

Re: WARNING: Never Change Radio Band

hi friends,

I have the same problem.

I have installed MTK Engineering Mode but not working with my phone.

unfortunatelly, my phone is not a MTK android.

 

it is XIAOMI MI5 dual sim, but not rooted.

a very new phone on which both slots work LTE/4G/3G simultaneously.

(no other dual sim works in the same way.

all other dual sims work LTE/4G/3G on a slot, and 2G only on the another slot.)

 

I did factory reset 10 times, but not working.

any idea, please?

do you know what to erase to not restart again with USA BAND after factory reset?

will I flash it?

thank you.

 

Rookie
Message 18 of 42
11,171 Views
Message 18 of 42

Re: WARNING: Never Change Radio Band

Hey, oalgvi17, if you only have one sim, try putting it in the other slot.
It worked for me until unfortunatelly (or more like stupidly) I repeated the mistake for the second sim too.
Anyone have an idea on how to revert it?
I cannot even get an sms for unlocking the bootloader so as to try flashing anything
Learner
Message 19 of 42
11,157 Views
Message 19 of 42

Re: WARNING: Never Change Radio Band

unfortunatelly I have damaged both slots.

any other ideas, please?

Rookie
Message 20 of 42
11,153 Views
Message 20 of 42

Re: WARNING: Never Change Radio Band

Yes, I finally fixed  it with this:

http://www.honorbuy.com/forum/thread-360053-1-1.html

same process is explained here (try using google translate), and also here, however I think the first one is more concise.

Also you might need some qualcom drivers (QDLoader HS-USB Driver). I have uploaded in my google drive here, but you could also google it.

 

Be adviced:

a) you could brick your device - I nearly did mine.

b) it took me a whole morning, so relax and be prepaired to spend some time.

c) At some point, halfway through the process I got an error, something like “Not enough storage is available to process this command”. At this point I was essentially left with a brick.

However I installed everything in another PC, restarted the phone in fastboot, etc and did it again and (after a couple of tries), it woorked.

The link from the 'honorbuy' site is also for the global ROM, which is good.

Good luck!