How to reset radio band for the axon 7? - ZTE Axon 7 Questions & Answers

Hi my axon is always on LTE but a very bad LTE I cannot even call and all of this because I use 4g switcher app and select cellular 800 in "choose radio band" the only other choice on the app is USA band and it's doesn't work so please how to restore this parameter?

Hi , I'm in Europe , did the same , found a solution for me
Hi , I did the same mistake but through the service menu 4636 . As a result , no more cellphone network . First, my Axon 7 is a "G" for the european market and is not rooted , no twrp , I only did the update (nougat 7.1.1) provided in the german website .
I tried a lot of things ( another simcard , second slot , factory reset ) the only solutions found in forums were for rooted and modified devices . ZTE support didn't respond to my answers .
So , I rolled back in marshmallow 6.0.1 without the simcard installed . In order to do that , I took the B10 update from the german ZTE website ( It downgrade the axon 7 from nougat 7.1.1 to marshmallow 6.0.1) . I renamed the file update.zip and placed it in the root of the SDCARD . Then I went to update software in the settings and it found the rollback update .
Did the update and after the restart , I think it's because it restarted without SIMCARD , the phone asked me to enter the android password . So I went in the recovery mode ( Vol+ & Power ) , I wiped data and reinstall my simcard . Reboot and YAAAASSSSSSS , finally worked as it was out of the box . I've lost all my apps but nothing really important , I will never try to change that crappy radioband again . Try to find a B10 update for your region , and do the rollback , maybe it will work for you .

Hi! Have you fixed your phone? Here I suggest you to try to fix in settings---More---Reset network. Good luck!

Hi, may I suggest you modify the embedded systems for modem to see if you can unlock more of the European bands so you won't have this issue anymore and the phone would work as a regular phone made for the European market, this is possible and on my axon 7 u model I was able to unlock the Verizon band 13 which was being restricted at the embedded level. There is a guide on the forums on how to do it, it mostly generic for all devices that have a snap dragon processor.
https://www.google.com/amp/s/forum....o-add-rf-lte-frequency-bands-to-t2886059/amp/

Related

Motorola X no calling

Hi,
I bought unloked motorola droid X to be used here in india and it worked fine till i tried to update the firmware and root it ,(i was on .621) though i have rooted and came to .604. But now I am not able to make a call ???? I thought i have messed up PRL which I tried updated with my network here in india but that also did not helped me at all , (using qpst)
now i am at conclusion that it is something related to firmware may be not , i am also not able to boot in to clock recovery mode (power+down vol)
have any body faces such problem ?
or because of wrong update i have locked my phone again ? but is connect to my home network reliance and says your phone is already active
i am in this mess from last 10 days and want to solve this on my own

This is madness...

Good afternoon, everyone .. I am a user p8 lite. I'm talking about the general problem. The phone was C363B120 version first . I live in Turkey. The country code for telephone channel /tr looked . I opened the unlocked bootloader . Config.bin file after you install ROOT hw/eu I made the change. I tried to update to the latest version throw MM ROM SD card. Failed. B150 B170 tried but still gives an error . I did everything but is not as complete . I extract files with Huawei update extractor . I tried to flash via adb did not happen again . I made the necessary changes to build.prop but it did not happen. CUSTOM ROM I tried did not. nonsense looks at information on the phone when the phone format with the stock recovery . And 4G / LTE option no longer exists. Please help me ... Sorry for bad english...
marcolomboss said:
Good afternoon, everyone .. I am a user p8 lite. I'm talking about the general problem. The phone was C363B120 version first . I live in Turkey. The country code for telephone channel /tr looked . I opened the unlocked bootloader . Config.bin file after you install ROOT hw/eu I made the change. I tried to update to the latest version throw MM ROM SD card. Failed. B150 B170 tried but still gives an error . I did everything but is not as complete . I extract files with Huawei update extractor . I tried to flash via adb did not happen again . I made the necessary changes to build.prop but it did not happen. CUSTOM ROM I tried did not. nonsense looks at information on the phone when the phone format with the stock recovery . And 4G / LTE option no longer exists. Please help me ... Sorry for bad english...
Click to expand...
Click to collapse
make sure you're on hw/eu (europe version = c432) before trying to install the custom rom...
here you go http://forum.xda-developers.com/p8lite/general/mod-automatic-change-location-region-t3388657
Thank you for your concern. but custom ROM must be installed to install the 6.0 version of the phone . my problem is that 6.0 is not installed . just change the area code of the file so I know config.bin
P8LİTE
Brother I just flashed . dual sim card manager looks . and want a sim card password every 20 seconds . as if he was wearing for the first time now . and so forth . I can not send SMS . I can make calls . oeminfo file is probably corrupted. * # 06 # I did. 2 IMEI = null looks . what should I do ? oeminfo the file location where?
marcolomboss said:
Brother I just flashed . dual sim card manager looks . and want a sim card password every 20 seconds . as if he was wearing for the first time now . and so forth . I can not send SMS . I can make calls . oeminfo file is probably corrupted. * # 06 # I did. 2 IMEI = null looks . what should I do ? oeminfo the file location where?
Click to expand...
Click to collapse
Lost imei is something we all had... just upgrade trough Ota. i recommend first flashing back to a lower build and then upgrade make sure you got the european version first. i never tested this in 6.0 i always flashed from c432B056 and then updated to B170 where i installed the b560 rom (6.0) trough local update if you need help just look forthe user Sokkoban (all over the general forums) and go to his website (in his signature). there you find all the files you need (google translate should come in handy)
Also this will help http://forum.xda-developers.com/p8lite/general/guide-debranding-converting-single-sim-t3305977 it got the most covert
Thank you to everyone. B170 version of my phone had dloadr folder. Maybe if he got . Trying to take the format recovery . It began to be installed at a time update.app vew was successful. B170 version now stable and everything is working.

No service, emergency calls only after upgrading to android 6.0.1 by OTA

Hi! I have an A5 (SM-A500FU) bought in Italy last year, Im using it since then in Argentina. With android lollipop I have never had issues with lost signal, no service messages or network not available. But since upgrading by OTA to Marshmallow these problems started. I have looked everywhere but I cant find anything that helps me. Also my service problems are not always present, sometimes I do have signal, but mostly when im out in the street. At home, for example I have no service and "only emergency calls" message. I'm using right now and old Moto XT316 with the same SIM card ( Claro AR) im using in the A5, and it is working fine, recieving network signal ( it is also a new sim card, just in case old SIM was the problem). The thing is I can´t use my A5 because it is constantly losing signal.
Thing I have already tried and didn't work:
- Changing to aireplan mode for a few minutes
-take out SIM card, restart the phone, turn off phone, put sim back in again, turn on phone
-verifiyng the APN for my network Claro Ar was correct, manually searching networks ( At home for example, it only finds Personal and Movistar (sometimes) but never finds Claro ar)
-Doing factory reset
-Reinstalling official firmware (PDA version : A500FUXXS1CPH2; CSC version : A500FUVFR1CPG2) with kies3 ( smart switch gave me an error)
-Flashing the UK BTU ROM ( the old one was from Vodafone Italy, now Phone info app says my mobile operator is 72234, while befor was 722310 which is correspondig with claro ar, what does this mean)
what could be causing this problem???? Im really starting to desperate now...
I read something interesting online, searching for some answers I got to the experience of some guy who had a very similar problem. Short story, his had to change his phone's network configuration in the "radioinfo" menu (or whatever the name of that hidden menu is) with an app named Network and force his cellphone to use only 3g or 2g. Turns out that his phone was trying to use LTE but LTE was not available in his region. This solved his problem. Mi phone can't use LTE here in Argentina because it is Italian, and since I have it it never conected to LTE network (I guess we use different frequencies) So I was thinking maybe my phone is also trying to use LTE but since it won't reach 4g signal ends up with no signal at all, excatly like this guy's phone.
But, apparently I need root access to get to this menu or even use this apps, is that correct?
So, should I root my phone to try that? does that story make any sense to you? Any advice?
Downgrade to lollipop I read is not my best option, also rooting it isn´t , but I'm starting to run out of solutions.
I add this information that could be helpfull:
Product Code : SM-A500FZKUBTU
Original CSC code : BTU
Active CSC code : BTU
PDA version : A500FUXXU1CPH3
CSC version : A500FUBTU1CPH1
Baseband version :A500FUXXU1CPH3
Android version : 6.0.1
Build number: MMB29.A500FUXXU1CPH3
Mobile operator :72234
Also IMEI number seems to be fine, it starts with 35 and matches the one in the back of the phone.
Sorry It is such a long thread!! Thank you very much!!

Sim signal not woking though IMEI is present

After flashing the stock 9.0 i some how managed to go back to stock 8.0 . But the problem is, the sim is getting detected but no it's showing no signal . The wifi is working .. any solutions ? Need help Guys !!
Check your APN, my manual APN was wiped after one OTA leaving me with the same situation.

Problem with SIM Card

Hi guys!
I'm from Venezuela, I recently acquired a Nexus 6p (h1511), so yes, I'm a noob. When the cell phone arrived in Venezuela, I connected it to the Wi-Fi network without placing a SIM card, and there was an update notification, I executed it, anyway it already came with Oreo 8.1, the update was December, the one that had It was November. After updating the SIM of the operator Movistar, recognizes it since it says "Without service - Movistar", when trying to call it shows the error "Mobile network not available", when trying to do a network search, it gives error, sometimes to one side of the signal bar, appears an R (Roaming I guess) ... I've been doing a lot of research, believe me I would not be creating this post if I was not so desperate, I have many doubts
I took it to a technician, he looked at it and said it was CDMA that there was nothing to do, he wanted to sell me a GSM motherboard, I told him I would think about it, it was strange for me to be just CDMA, I investigate more and I realize that it's dual, and it changes from MEID to IMEI when I put the SIM card ... I did a factory reset and it did not work. I used the options in *#*#4636#*#* the default is LTE/CDMA/UMTS Auto (PRL) ... I tried to put GSM Only or Auto or any option that included GSM. Without apparent results, I think that it did not even change the default option, the radio bands are few, all from the USA (logical being the USA version of the cell phone) ...
Investigating further, I understood that the problem persists in Android Oreo ... Under the official firmware of Google 7.1.2, I follow the steps, I do the unlocking bootloader, flash vendor / radio, flashing system, in the end there is an error , something about user, I really do not remember, something like that could not erase the user partition or had no permissions ... The issue is that I turn on the cell phone, start to do an erasure, then start asking for google account, etc. ... I configure it, but I see everything the same, I enter the configuration and details of the team, it keeps dialing android 8.1.0, but I see that the base band has changed, some apps have changed, like the application of calls ...
Does anyone know what happened? (And no, the SIM problem was not fixed) :crying:
I want to install this ROM
https://forum.xda-developers.com/nexus-6p/development/rom-chroma-11-08-2015-lockscreen-navbar-t3244444
According to many sites and here in XDA comment that it solves the problem, but this is 6.0.1 ... It means that I must flash 6.0 stock? To install the custom? Or can I install on 8.1?
Any other more updated custom rom that solves this problem?
Thank you! :fingers-crossed:

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