Hey guys, i was wondering if i can flash firmware from other carrier without bricking?
I bought my phone last year locked to carrier, and I unlocked it using doctorSIM service. Phone itself works fine, and as I'm not living in country that i bought my phone from originally, phone gives a message "No SIM card installed" sometimes once a week, sometimes several times a day and i need to remove SIM card or to restart phone to make SIM card work again.
Please note:
- SIM Card from my original carrier (from one that I bought my phone from) works PERFECTLY fine
- My other SIM card (that my phone constantly rejects) works in other phones just fine
- I have tried to reset the phone, and carrier bloatware constantly keeps installing
- EDIT: Wi-Fi and 4G are working PERFECTLY fine
What to do? Any ideas?
Thanks in advance and sorry for gramar mistakes
Bump, flashed other carrier firmware, still same problem.
R u rooted? Have you considered flashing a CSC packet for your location?
I have a 930S, and works fine with the Korean ROM/Chinese language here in the US, on ATT service.
I have flashed the ATT, XAA and TMB CSC sets, and though the phone worked, and loaded the correct USA carrier info, I lost the phone code ability, which I could not solve.
In the end I went back to the original Korean ROM and it's CSC packet. Interestingly, though it works perfectly here in the U.S., and I can use/input phone codes, it still shows Chinese cities for my 'Region", none of which I have selected. When I do a search for local towers, it locates and correctly identifies AT&T, T-Mobile, etc. I select ATT. The Chinese cities remain in the region selection, none selected.
Wait and see if someone knows if CSC (Exynos or US based CPU) are interchangeable. I used CSC packets from a universal ROM setup (non-USA).
JeffDC said:
R u rooted? Have you considered flashing a CSC packet for your location?
I have a 930S, and works fine with the Korean ROM/Chinese language here in the US, on ATT service.
I have flashed the ATT, XAA and TMB CSC sets, and though the phone worked, and loaded the correct USA carrier info, I lost the phone code ability, which I could not solve.
In the end I went back to the original Korean ROM and it's CSC packet. Interestingly, though it works perfectly here in the U.S., and I can use/input phone codes, it still shows Chinese cities for my 'Region", none of which I have selected. When I do a search for local towers, it locates and correctly identifies AT&T, T-Mobile, etc. I select ATT. The Chinese cities remain in the region selection, none selected.
Wait and see if someone knows if CSC (Exynos or US based CPU) are interchangeable. I used CSC packets from a universal ROM setup (non-USA).
Click to expand...
Click to collapse
I'm not rooted, as I use Samsung Pay and have more than one year of warranty left. I will try flashing CSC of the current country I'm in (Austria). Thanks for taking time and writing all this, this problem is unbearable
Hello!
My s7 edge is in trouble, it freezes sometimes, and sometimes it gets a full screen of pixel color flaws, with that problem my root smartphone works two weeks. Sometimes this error occurs in the ROM installation process, I insist on the installation until I can. I tried to install superman rom and due to this problem, the smartphone in the screen of death "exception of bootloader" (But it's already been resolved)...
When searching the internet, I saw that this could have a problem in flash memory.
After all history, I ask;
I could use a twrp file system repair function to try to solve this problem? And how to proceed?
(sorry for the use of google translate)
sekrilhus said:
Hello!
My s7 edge is in trouble, it freezes sometimes, and sometimes it gets a full screen of pixel color flaws, with that problem my root smartphone works two weeks. Sometimes this error occurs in the ROM installation process, I insist on the installation until I can. I tried to install superman rom and due to this problem, the smartphone in the screen of death "exception of bootloader" (But it's already been resolved)...
When searching the internet, I saw that this could have a problem in flash memory.
After all history, I ask;
I could use a twrp file system repair function to try to solve this problem? And how to proceed?
(sorry for the use of google translate)
Click to expand...
Click to collapse
I am, by far, not educated up on TWRP, so I'm not sure what you mean by "repair", other than making sure your data partition is formatted so it does not cause the issues you are talking about.
Here is an interesting read:
https://forum.xda-developers.com/go...o-repairing-corrupted-data-partition-t2577447
Hey guys, update on the problem, i replaced sim card and it works just fine, i will post updates as time goes on
Thanks for the help!
Related
Hey,
I flashed my device some time ago and I broke the glass. I sent to a repair shop and since then I'm stuck on roaming and I can't register to my network (Videotron).
When I use auto connect, it uses Videotron PRTNR which is videotron's partner network (rogers).
I want to install the stock firmware but I've tried to install about 7 of them from sammobile or samsung-updates, all of them show BMC (BELL) or EUR at the end of the firmware version in kies.
Kies refuses to let me install the stock firmware from the firmware upgrade and initialization it says "This version of the device cannot be updated."
I want to be absolutely sure it's not my firmware that's causing the problem before accusing the repair shop....
Does anybody have any idea?
chetus said:
I flashed my device some time ago and I broke the glass. I sent to a repair shop and since then I'm stuck on roaming and I can't register to my network (Videotron)
Click to expand...
Click to collapse
The way you worded your post is confusing. Did the glass shop break your phone or did your flashing cause the issue? We need to know exactly what you did and a lot more information about your phone configuration if you want good advice. You didn't even tell us which S5 variant you have, the specific firmware versions you refer to or give us a verbatim log of what Odin said when you tried to install (an unspecified) firmware version. All of which are critical details.
Some obvious first steps, try your SIM in another unlocked phone to confirm that the SIM and your account are working properly. Also try a friend's SIM in your phone and see what the result is. Check your phone settings for inadvertent changes of course. And list what your phone settings are for us! Clear your system cache from recovery mode.
If you still have problems, try writing a stock firmware with Odin, followed by a factory data reset. Then give us a detailed, step by step description of what you tried and the results for a start.
.
fffft said:
The way you worded your post is confusing. Did the glass shop break your phone or did your flashing cause the issue? We need to know exactly what you did and a lot more information about your phone configuration if you want good advice. You didn't even tell us which S5 variant you have, the specific firmware versions you refer to or give us a verbatim log of what Odin said when you tried to install (an unspecified) firmware version. All of which are critical details.
Some obvious first steps, try your SIM in another unlocked phone to confirm that the SIM and your account are working properly. Also try a friend's SIM in your phone and see what the result is. Check your phone settings for inadvertent changes of course. And list what your phone settings are for us! Clear your system cache from recovery mode.
If you still have problems, try writing a stock firmware with Odin, followed by a factory data reset. Then give us a detailed, step by step description of what you tried and the results for a start.
.
Click to expand...
Click to collapse
My apologies for the lack of information
I have the SM-G900W8 model, using Videotron as my network provider. I believe the roaming issue did not exist before the repair, but they won't believe me since I have a custom rom installed.
While my phone was being repair I've used a galaxy S3 and it started roaming... I thought it was normal since the phone is from Bell (Unlocked) and maybe the network aren't compatible.
I tried what you suggested and inserted my Sim card into my girlfriend's Videotron Galaxy S3 and it still says roaming. I guess the problem must be with the sim card or videotron's network?
And about the roms I tried on my S5 :
=> with Phoenix rom v2, the problem is there.
=> With a couple of original SM-G900W8 stock rom (found on sammobile website) flashed with odin , the problem is still there.
I did try to clear the cache etc...
I forgot, the latest rom I flashed is named G900W8VLU1ANF4_G900W8OYA1ANF4_G900W8VLU1ANF4_HOME.tar.md5.
Please let me know if I forgot something :fingers-crossed:
..
fffft said:
Critical point that. If I understand your reply, the problem remains when you try your SIM in your girlfriend's phone. That shows the problem to be independent of your phone i.e. it is a problem with your SIM or more likely, account. Especially if your girlfriend doesn't have this issue with her own SIM.
Talk to your carrier's support department and if they can't resolve it immediately, open a ticket for them to look into it further. Based on what you described it doesn't seem to have anything to do with the glass repair people. It's just an account problem that happened to occur while your glass was being repaired.
Let us know what support says or if anything changes. If you're ambitious, post your network settings here for review, just in case they impact on the issue in some way. Still it seems to be an account issue.
.
Click to expand...
Click to collapse
I contacted the technical support team and they are working on it.
Thanks for the help, I'll post if they fix it or if I find the solution myself.
chetus said:
Hey,
I flashed my device some time ago and I broke the glass. I sent to a repair shop and since then I'm stuck on roaming and I can't register to my network (Videotron).
When I use auto connect, it uses Videotron PRTNR which is videotron's partner network (rogers).
I want to install the stock firmware but I've tried to install about 7 of them from sammobile or samsung-updates, all of them show BMC (BELL) or EUR at the end of the firmware version in kies.
Kies refuses to let me install the stock firmware from the firmware upgrade and initialization it says "This version of the device cannot be updated."
I want to be absolutely sure it's not my firmware that's causing the problem before accusing the repair shop....
Does anybody have any idea?
Click to expand...
Click to collapse
I am also with Videotron.
Try to use the Search for Network, not the auto connect and see if Videotron is available from that menu.
If it is not, be sure that there is a Videotron cell tower near you otherwise it will default to Videotron PRTNR which is the normal behavior if the Videotron signal is out of reach.
---------- Post added at 02:03 AM ---------- Previous post was at 01:51 AM ----------
dualathlonpc said:
I am also with Videotron.
Try to use the Search for Network, not the auto connect and see if Videotron is available from that menu.
If it is not, be sure that there is a Videotron cell tower near you otherwise it will default to Videotron PRTNR which is the normal behavior if the Videotron signal is out of reach.
Click to expand...
Click to collapse
The firmware that I found on sammobile and that I flashed on my S5 is G900W8VLU1ANF4_G900W8OYA1ANF4_VTR.zip (note the VTR at the end which is the Videotron variant).
someone save me please... I've been struggle for two weeks...
I'm using S5-G900F, its a Hongkong version, and I'm currently in UK with giffgaff. last month I tried few new rom and then I can't use voice service any more. However I still have internet. Some detail below:
APN
1. I 100% sure its not an APN problem
IMEI
1. IMEI seems ok, start 4 digit 3524****
SIM card related
1. At first I assume it's a SIM card related problem, I tried 2 SIM with different ISP, neither work.
2. Also, I put those 2 SIM on my iphone4 to verify that the SIM is good, and both card work.
3. I also checked the SIM card cable, I put one piece of paper above the SIM to tight the contact, still doesn't work.
Phone related
1. Before I brought the phone, I had check the bands it supports, and it is capable to used here. And the phone work perfect (well, with stock firmware its really slow) before everything happen.
2. Since I brought this phone in HK and now I'm in UK, I tried to flash both latest UK and HK firmware (lollipop), neither work.
3. I also tried only flash baseband from that two firmware plus one old-version baseband. none work.
4. For those flash mentioned above, I do full wipe.
Rom
The rom I tried list below (in time sequence)
1. XtreStoLite (the BL/baseband is extract from Brazil stock firmware. After that problem occur, but I didn't realize)
2. CM12 (this two are all from this forum)
3. TGY-G900FZHU1BOA1-20150120092320 (HK stock firmware, 5.0. Try to recovery the voice)
4. BTU-G900FXXU1BOB7-20150223084756 (UK stock firmware, 5.0. Still trying)
5. Also 2 baseband/BL from XtreStoLite thread (Another is an old-version. Still).
So now for everyday, I had to carry two phone... one just to make sure I don miss any call.... I have tried and still no clue... really need some help here.... Help please...
Tian02 said:
someone save me please... I've been struggle for two weeks...
I'm using S5-G900F, its a Hongkong version, and I'm currently in UK with giffgaff. last month I tried few new rom and then I can't use voice service any more. However I still have internet. Some detail below:
APN
1. I 100% sure its not an APN problem
IMEI
1. IMEI seems ok, start 4 digit 3524****
SIM card related
1. At first I assume it's a SIM card related problem, I tried 2 SIM with different ISP, neither work.
2. Also, I put those 2 SIM on my iphone4 to verify that the SIM is good, and both card work.
3. I also checked the SIM card cable, I put one piece of paper above the SIM to tight the contact, still doesn't work.
Phone related
1. Before I brought the phone, I had check the bands it supports, and it is capable to used here. And the phone work perfect (well, with stock firmware its really slow) before everything happen.
2. Since I brought this phone in HK and now I'm in UK, I tried to flash both latest UK and HK firmware (lollipop), neither work.
3. I also tried only flash baseband from that two firmware plus one old-version baseband. none work.
4. For those flash mentioned above, I do full wipe.
Rom
The rom I tried list below (in time sequence)
1. XtreStoLite (the BL/baseband is extract from Brazil stock firmware. After that problem occur, but I didn't realize)
2. CM12 (this two are all from this forum)
3. TGY-G900FZHU1BOA1-20150120092320 (HK stock firmware, 5.0. Try to recovery the voice)
4. BTU-G900FXXU1BOB7-20150223084756 (UK stock firmware, 5.0. Still trying)
5. Also 2 baseband/BL from XtreStoLite thread (Another is an old-version. Still).
So now for everyday, I had to carry two phone... one just to make sure I don miss any call.... I have tried and still no clue... really need some help here.... Help please...
Click to expand...
Click to collapse
Can anyone help me please....
Was the phone service working for you before you tried a new ROM?
I have the same issue. Can't make or recieve calls. Internet is working though.
When you try to call someone, do you get 'call ended' message almost immediately after dialing out?
Also, when you go to phone / settings / additional settings (or more settings) - does the 'network or sim card error' pop up?
Can't figure this out... Hopefully someone would be able to point us to right direction, other than to replace it
And of course I did a factory reset, new roms, modems, everything there is to try. nothing helped
could it be because of Region Locking? Maybe it's locked again after flashing?. I want to buy this phone but I am not sure if it will get region locked again after it gets updated or custom flashed.
Kamco said:
Was the phone service working for you before you tried a new ROM?
I have the same issue. Can't make or recieve calls. Internet is working though.
When you try to call someone, do you get 'call ended' message almost immediately after dialing out?
Also, when you go to phone / settings / additional settings (or more settings) - does the 'network or sim card error' pop up?
Can't figure this out... Hopefully someone would be able to point us to right direction, other than to replace it
And of course I did a factory reset, new roms, modems, everything there is to try. nothing helped
Click to expand...
Click to collapse
Yes, before I flash those ROM everything goes well. I'm currently using CM12 so I don't have the setting you mention. But anyway I never seen that pop message before. I guess the SIM card work good as the phone can connect to the internet (not wifi, cellular internet).
Recently unlocked my Samsung Galaxy s7 edge. I decided to transfer my sim from my iPhone to my Samsung. I can text and call but my mobile data is not working. I believe it has something to do with my apn settings. But once I try to go to my apn settings it says "Unable to view access point name. Access is restricted to current user profile.
Would love to have someone to help me fix this problem.
What carrier is your s7
Globe (from the Philippines) gotnit unlocked and moved to Canada and using a Canadian sim atm
Sounds like a common problem going back to the introduction of mm. Carries implemented it to stop users from getting free Hotspot usage without them having the feature on there plans.
http://forum.xda-developers.com/galaxy-s6/help/apn-settings-t3072391
Here's some info I found on it with a possible fix on one of the post. Also the sprint s7e forum has users talking about losing the ability to change apn after OTAs
Sorry my Internet is dreadfully slow and having a hard time browsing through this forum. So do I have to root my phone in order to make the modifications to get my 3g to work?
Still having problems but I'm getting somewhere..
The carrier I bought this phone from did some retarded modifications to this phone.
So most likely the problem is this "user profile" it might be fixed if I can change or delete it or whatever. But the problem is I can't find the place where you can change this user profile. It seems it's supposed to be in "about device" but there is nothing that could change the user profile. I think the previous carrier somehow modified it stupidly. Reformatting doesn't help BTW.
pandakn1ght said:
Recently unlocked my Samsung Galaxy s7 edge. I decided to transfer my sim from my iPhone to my Samsung. I can text and call but my mobile data is not working. I believe it has something to do with my apn settings. But once I try to go to my apn settings it says "Unable to view access point name. Access is restricted to current user profile.
Would love to have someone to help me fix this problem.
Click to expand...
Click to collapse
have you figured this out yet buddy?
pandakn1ght said:
Recently unlocked my Samsung Galaxy s7 edge. I decided to transfer my sim from my iPhone to my Samsung. I can text and call but my mobile data is not working. I believe it has something to do with my apn settings. But once I try to go to my apn settings it says "Unable to view access point name. Access is restricted to current user profile.
Would love to have someone to help me fix this problem.
Click to expand...
Click to collapse
I have the same problem. Did you get this fixed?
Globe-locked S7 unlocked.
Same thing here. I just recently unlock my phone using the unlock code given to me by Globe telecom but when I use different sim network, I can only do call & text. I contacted Globe and the agent told me that unlocking is for call & text only and mobile data still locked to Globe.
Can we bypass this by reflashing openline firmware or wait for Oreo update?
hunkguy94 said:
Same thing here. I just recently unlock my phone using the unlock code given to me by Globe telecom but when I use different sim network, I can only do call & text. I contacted Globe and the agent told me that unlocking is for call & text only and mobile data still locked to Globe.
Can we bypass this by reflashing openline firmware or wait for Oreo update?
Click to expand...
Click to collapse
Did you manage this?
botski said:
Did you manage this?
Click to expand...
Click to collapse
After the Oreo update, I still have same issue. But before I upgraded to Oreo, I managed to fix the issue. I was trying to root my device (Nougat), unfortunately, it failed. So I downloaded openline firmware (PH version) for S7 in Sammobile and reflashed. I think I missed flashing CSC file but it was successful. The other sim network worked fine and can be used for data already. But when I checked for OS updates, it has no CSC code indicated, and my settings interface was like from UK (not sure). So I reflashed again with CSC file already and it got back to Globe interface and same issue occured. Haha. But the point is, we can fix the issue by changing CSC.
hunkguy94 said:
After the Oreo update, I still have same issue. But before I upgraded to Oreo, I managed to fix the issue. I was trying to root my device (Nougat), unfortunately, it failed. So I downloaded openline firmware (PH version) for S7 in Sammobile and reflashed. I think I missed flashing CSC file but it was successful. The other sim network worked fine and can be used for data already. But when I checked for OS updates, it has no CSC code indicated, and my settings interface was like from UK (not sure). So I reflashed again with CSC file already and it got back to Globe interface and same issue occured. Haha. But the point is, we can fix the issue by changing CSC.
Click to expand...
Click to collapse
Great mate! What csc can we use? Thanks!
CSC Codes
Google the list of CSC codes per country.
To change CSC code, enter *#272*Device IMEI#
Tried XTC (Philippines - Open Line) and it worked.
WARNING: This procedure will wipe the data of your phone. This may also void the warranty. Do this at your own risk.
At some point after an update I noticed I couldn't use region specific apps like Galaxy Apps, Bixby Voice etc. (SM-G950U1 unlocked phone purchased and used in USA) I have been trying to find a solution for a long time now to no avail. However, I believe I managed to narrow down the problem to my csc code being gcf instead of xaa. I have been trying to revert my csc code to XAA several times now (recovery reset, Odin, using a Sprint sim etc.) Any tips?
Changing CSC code to the original one
UPDATE: I managed to solve the problem on my own despite being on call with Sprint support for hours on end to no avail. Basically, my problem was the following: I was using FreedomPop (VoIP number on a sim card). When I did a software update, my phone's CSC changed to GCF (which stands as unknown). I got a new sim card eventually (one from Sprint). However, I couldn't get it to activate and work on my phone. For others, the phone was rebooting after inserting the sim card and switching to SPR CSC whereas mine wasn't doing anything. I ended up using the Carrier Switch for Snapdragon guide (do a lot of reading beforehand). It ended up working out beautifully. I inserted the sim card, phone got activated and I was able to use all the apps I mentioned in the OP and get updates.
Berchtwald said:
At some point after an update I noticed I couldn't use region specific apps like Galaxy Apps, Bixby Voice etc. (SM-G950U1 unlocked phone purchased and used in USA) I have been trying to find a solution for a long time now to no avail. However, I believe I managed to narrow down the problem to my csc code being gcf instead of xaa. I have been trying to revert my csc code to XAA several times now (recovery reset, Odin, using a Sprint sim etc.) Any tips?
Changing CSC code to the original one
Click to expand...
Click to collapse
I need urgent help with this exact problem also...
maxi1773 said:
I need urgent help with this exact problem also...
Click to expand...
Click to collapse
I managed to solve the problem on my own despite being on call with Sprint support for hours on end to no avail. Basically, my problem was the following: I was using FreedomPop (VoIP number on a sim card). When I did a software update, my phone's CSC changed to GCF (which stands as unknown). I got a new sim card eventually (one from Sprint). However, I couldn't get it to activate and work on my phone. For others, the phone was rebooting after inserting the sim card and switching to SPR CSC whereas mine wasn't doing anything. I ended up using the Carrier Switch for Snapdragon guide (do a lot of reading beforehand). It ended up working out beautifully. I inserted the sim card, phone got activated and I was able to use all the apps I mentioned in the OP and get updates.
Hey peeps,
I myself am a newbie on Samsung but i found this on the web, use google translate. Hope it works
http://forum.android.com.pl/topic/317974-debranding-samsung-galaxy-s8/
I have the same problem and i've been looking all around for a way to make my phone update via OTA, but no chance, the last updat was from april 2017!
No i believe it's the same problem : region locking.
Is there a was to resolve this ?
The closest thing i found is that polonais link you published but it is a little outdated by now
Berchtwald said:
I managed to solve the problem on my own despite being on call with Sprint support for hours on end to no avail. Basically, my problem was the following: I was using FreedomPop (VoIP number on a sim card). When I did a software update, my phone's CSC changed to GCF (which stands as unknown). I got a new sim card eventually (one from Sprint). However, I couldn't get it to activate and work on my phone. For others, the phone was rebooting after inserting the sim card and switching to SPR CSC whereas mine wasn't doing anything. I ended up using the Carrier Switch for Snapdragon guide (do a lot of reading beforehand). It ended up working out beautifully. I inserted the sim card, phone got activated and I was able to use all the apps I mentioned in the OP and get updates.
Click to expand...
Click to collapse
ok I'm ready to try this but my concern is that (G950U1UE1AQDC_XAA). Where the "UE1" on my phone is UES2 which means i am on bootloader ver-2 . Is Any way i can find a download containing bootloader ver-2 files?
Berchtwald said:
At some point after an update I noticed I couldn't use region specific apps like Galaxy Apps, Bixby Voice etc. (SM-G950U1 unlocked phone purchased and used in USA) I have been trying to find a solution for a long time now to no avail. However, I believe I managed to narrow down the problem to my csc code being gcf instead of xaa. I have been trying to revert my csc code to XAA several times now (recovery reset, Odin, using a Sprint sim etc.) Any tips?
Changing CSC code to the original one
UPDATE: I managed to solve the problem on my own despite being on call with Sprint support for hours on end to no avail. Basically, my problem was the following: I was using FreedomPop (VoIP number on a sim card). When I did a software update, my phone's CSC changed to GCF (which stands as unknown). I got a new sim card eventually (one from Sprint). However, I couldn't get it to activate and work on my phone. For others, the phone was rebooting after inserting the sim card and switching to SPR CSC whereas mine wasn't doing anything. I ended up using the Carrier Switch for Snapdragon guide (do a lot of reading beforehand). It ended up working out beautifully. I inserted the sim card, phone got activated and I was able to use all the apps I mentioned in the OP and get updates.
Click to expand...
Click to collapse
So i finally got through. What i did was root my phone then use the Samsung phone info app to change the csc (must be rooted to do this). after changing the csc i flashed back to stock rom and all is well.
maxi1773 said:
So i finally got through. What i did was root my phone then use the Samsung phone info app to change the csc (must be rooted to do this). after changing the csc i flashed back to stock rom and all is well.
Click to expand...
Click to collapse
Sorry, been super busy this week. I was also on bootloader ver. 2. I'm glad you solved it though!
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: