Database Users

A7 ( 2016 ) Service mode

Dear all
I just get a A7 from a Asian friend.. byt it doesn support the Band 4 of LTE in my country.
Is any way to enable the band 4.
I read in internet that the service mode is a way to enable this. with *#0011# ( that in fact goes to a service mode screen ) but different with the tutorials.. the phone shows
[1] STACK 1
[2] STACK 2
Intead the signal information.....
So i try with <BACK> <Q0000> and <BACK> Q <BACK> 0000 in this menu
also i try inside [2] and [1].. nothing seem to work and go to the "Service options!"
Does anyone know how to acces this menu in A7 2016.. or if there any other way to enable the missing LTE Bands?
Regards,

Are you having a dual-sim phone ?

nonoandno said:
Are you having a dual-sim phone ?
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Yes is the DUOS version

beholdermr said:
Yes is the DUOS version
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bump, thoeas anyone have an idea how ro enter service Mode
I need to enable the BAND 4 in an A710 FD phone..

you have to be root. I have the same problem some time ago I tried this method, but it did not work.
if you try too, could share it if it works? http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059

alexandres6 said:
you have to be root. I have the same problem some time ago I tried this method, but it did not work.
if you try too, could share it if it works? http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
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Click to collapse
So you never test it? you want me to be you guinee pig
As soon i forbid the guarantee i;ll root and try angain.. meanwhile anyone one can confirma that being root is the cause the service mode menu is disable?
regards

i work a lot in this in my phone.. i finally get how to enter Service mode in A7(2016)
first i go root in the phone .. second part i install phone Info that has the option enter Service Mode in root mode.
But seems that the Network I need to unlock is disable in the NV of the phone, so i need to modify .. i went to the post and try to follow th options.
the problem i found is that the A7 ( 2016 ) is unable to be detected in diagnotic mode
I setup USB options *#0808# to any DM opiton ( Diagnotic mode ) and is supposed to be recognized as USB Diagnostic USB .., but it didin;t work with Normal Samsung USB Drivers.. 1.5.60 do you have any clue on what happening?

Hey,guy. I have a new way which may unlock All Network mod .i think You should have a try.(need root)
1.Download Root explorer
2.Go to the contexts :system/csc
3.find out the the file :customer.xml
4.mod the premission like the following pic.
5.reboot And Go to setting you Now can choose LTE mode.
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Sent from my SM-A5108 using Tapatalk

same phone and the same problem here

Is there any way to increase headset volume of galaxy A7 2016..???

Looking for a Freelancer / Paid assistant to fix OEM_NV_Backup

Hello! I am an expat living abroad on a small island. From a tech support / save standpoint it's a remote location and getting access to adequate tech support is difficult.
I sent my phone to the local OnePlus service centre because an error on my phone “OEM_NV_Backup” kept randomly popping up on the screen after switching from OOS to H2OS.
After 2 days of assessing the problem, they OnePlus service centre returned the phone determining that the issue was Oneplus Two wasn’t sold in my location. They then had me pay for the DHL to send the handset to the capital city, whereby they took 5 days to tell me that they couldn’t help either as the OP2 wasn’t sold in this country.. Obviously I then paid for the return DHL!! The phone cam back accept now the phone won't register on any network.
Everything else is working as new... I have tried.. i really have but my capability truck isn't as full as first thought!
I simply need to pay for the services of an expert... My thoughts are I copy the full NV .QCN file. Have the expert work their magic and send back to me. I will then restore the fixed .QCN file with QXDM software programming and the job should be done.
I have proof of ownership, the box, the imei etc … Everything is legitimate.
Looking to have the job done asap.. I posted it on Freelancer but i can paypal etc a payment...
Can anyone assist? Thanks R
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Maybe from h2os modem

if you have lost your Second IMEI and you dont have your modem files backup from OOS then you cant restore your imei.
It is gone.
even after editting qcn file imei 2 is not coming back.
its encrypted

I have a A2001 single imei OP2. I have the modem, modemst1 &modemst2 files. The phone even got signal today for 10 mins. I think something has been changed in with NV Browser. I flashed it with CM and it had CDMA settings in the network menu.
Does anyone know where I could get a complete .qcn minus the imei NV items?
Thanks for any ideas or help.

Problems with other operators s7 verizion

I ve bought s7 in Asia. And i didnt know that its a big problem that it is a verizion version. Now all the time when i travel and changing sim cards i need manualy to add Apn point to use internet and not all people who sell know this details. (Usually when u buy sim and insert it this settings are alrready inside u just have to send message or choose apn point)may be there is some custom rom which will help with it?and the most important problem which i didnt solved yet happened yesterday. In Thailand i ve bought new sim. And to activate 7 days internet need to send code starting from *9 or to check internet balance *900# . But it's not possible to do!!! Because whatever u will type starting from *9 u will get a message something like "forward calling type US number" so yesterday i spent 30 minutes trying to apply this internet. And nothing helped,I also look the code *72 or othet to switch it off. Not working. Im so disapointed with this verizion. I want to get rid of all this codes *9 and in other unlocked galaxy phones i could choose mobile network in settings(lte,gsm) or choose operator. Here it's happening automaticly.help me please,because i cant even use this normal code which starting from *9.. all the time this stupid message with call forwarding
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Try flashing the 930U firmware to the phone. It will flash it to the US Unlocked version. If that doesn't help maybe just sell it and get the 930F international version.

All phones I have that are carrier specific you need to enter APN settings manually. APN settings aren't attached to the SIM card, especially if its a prepaid one. I normally get the APN settings online or from the store I bought the SIM card or I know there are a few apps out there with APN databases for countries/carriers
---------- Post added at 04:33 AM ---------- Previous post was at 04:30 AM ----------
You can choose what network to connect to but APN settings are needed for data only, not voice. Under settings > mobile networks > network mode > choose GSM > Manual > then at the bottom you can choose the network operator

Lenovo k6 note recieves calls, but does't make calls or use data!

hello guys,
I rooted my phone, and since the moment I rooted it. it put a dash on my sim card sign on the notification bar. although when I lock the mobile I see my network operator appear on lock screen.
the phone receives calls and doesn't make calls. and also one other thing I noticed is that I can't allow apps permissions from the message box that appears in app. I need to go into settings to enable them from settings.
help me on this
as u can see in the screenshot, it says Vodafone in lock screen and sim card slot is empty in notification bar, so it recieves calls, and doesn't make outbound calls or connect to data.
https ://imgur .com/iLDhOWM
remove spaces for screenshot link
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https://imgur.com/iLDhOWM

update
updated with screenshot on imgur

You have your imei? Check by dialing *#06# and also check whether your wifi and bluetooth mac address is available in settings > about> status

sk.vyshak said:
You have your imei? Check by dialing *#06# and also check whether your wifi and bluetooth mac address is available in settings > about> status
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yes I have my Imei and I have my wifi and bluethooth mac address, I can use wifi and bluetooth on it.

swordsaad said:
yes I have my Imei and I have my wifi and bluethooth mac address, I can use wifi and bluetooth on it.
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So no serious issues. Just OS has some problems. Try factory resetting it. Else download stock firmwsre and flash it. Dont downgrade if you are doing that. You will loose your baseband.

could you refer to the most trusted source on how to flash stock firmware please. I always try it and fail.

No networks or mobile data after flash

Hi, i'm kinda desperate but I'll try to be as clear as possible. So.
Recently I got an used galaxy s8(G950F), at the time I got It, i could get network,make calls and lte with no problems, so, I saw that the mobile was rooted and also I had really bad problems of battery,like I almost lost all my battery because of the usage of android system,( i think an app was bugged or something because my phone was really overheating when I was only using chrome and nothing more, and happened with every app I used), I didn't want the device rooted and with that problem of battery. So I tried to flash another room in order to try to fix it, and when I did, I couldn't get into network, I only get the "emergency calls only".again, In order to try to fix that, i flashed some same csc and pda firmware,then another firmware with only same baseband, (always with original firmware) and nothing seems to work. I really don't know what to do now, I pulled out the sim before factory reset, and put it after, turning off airplane and turning on, like any easy solution I could find I tried it.I'm out of ideas. One thing I saw is that the firmware I had before has pda and csc from a firmware from MXO but a baseband from ARO that ends in CR1. I couldn't find a firmware like that and also I want to know if I can fix it, really. I'll really appreciate any help. Thanks.
Some more things: if I do try to select a network at the select networks operators I get "error while searching for networks" ,the network I'm trying to connect is movistar, I'm from Argentina, I'll attach screenshots of the firmware I had before (the one that was working the mobile data) and now, also the imei didn't change or disappear so I don't think that's the problem.
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´
EDIT: ok, i send the phone to a repair shop and turns out that the imei is blacklisted and has been changed.also the person who sold me the phone didn't mention anything about that, so when i restarted my phone it came back to the original imei. big oof for me. if any moderator sees this you can delete the post.