[Q] Loosing HSPA on root - no sim card - Nexus 7 Q&A, Help & Troubleshooting

Hey guys,
after replying to several other threads i decided to make this a thread on it's own.
i tried to root my nexus 7 3G - "nakasig" with the two toolkits. also i tried it manually pushing the root stuff via adb.
when on stock + unlocked bootloader i have normal 3g connection but after the root it just says "no sim card". still i can search for networks but it doesnt let me connect to them. its as if the sim slot would lose its drivers or something. any ideas on that?
I'd be really happy if any of you would help me, im out of options i suppose...
cheers,
mo

Same problem here. Any news on that?

Here is a quick solution to your problem: STOP USING TOOLKITS!
The process is ridiculously simply. By using these automated tools, you're just asking for problems. And when one occurs, you have no idea how to troubleshoot it.
I wouldn't be surprised if the toolkit you used doesn't support the 3G model and probably broke the 3G capabilities.
1) Unlock bootloader if it hasn't already been done.
2) Flash custom recovery of your choice (make sure it's capable of supporting 4.2 multi-user)
3) Put an "su" flashable zip on sdcard.
4) Go into custom recovery and flash it.
5) Reboot
Voila. Done.

In fact, I didn't use any Toolkit (I want to control everything on my own, and am not afraid of using the console/adb).
Here are the steps, I did:
1. Unlock bootloader (fastboot oem unlock)
2. Boot custom recovery (fastboot boot [recovery.img])
3. Mount /system in recovery
4. adb shell -> put su in /system/bin -> put Superuser.apk in /system/app (and chmodded su to 06755, Superuser to 0644)
5. restarted, no 3G available
The problematic step could be the second, I used the "recovery-clockwork-touch-6.0.1.0-grouper.img", which is not specially for the N7-3G (called nakasig). Is there a better recovery Image?
I didn't want to flash the recovery, so I just booted into it. Could this be the problem?
Best regards

kroegerama said:
In fact, I didn't use any Toolkit (I want to control everything on my own, and am not afraid of using the console/adb).
Here are the steps, I did:
1. Unlock bootloader (fastboot oem unlock)
2. Boot custom recovery (fastboot boot [recovery.img])
3. Mount /system in recovery
4. adb shell -> put su in /system/bin -> put Superuser.apk in /system/app (and chmodded su to 06755, Superuser to 0644)
5. restarted, no 3G available
The problematic step could be the second, I used the "recovery-clockwork-touch-6.0.1.0-grouper.img", which is not specially for the N7-3G (called nakasig). Is there a better recovery Image?
I didn't want to flash the recovery, so I just booted into it. Could this be the problem?
Best regards
Click to expand...
Click to collapse
I had issues on my 16GB unit with that version of CWM on 4.1.2. I ended up using the 'beta' version 6.0.1.5 - it''s on XDA somewhere. When I got my N7 3G, I used the latest version of TWRP, and it works great.
But, based on what you are saying, none of that should even matter. In your case, you're not actually flashing a SU zip, you're manually installing it yourself (I did the same thing). So as long as you are able to mount /system and modify it's contents, which you obviously did, that's fine. The only thing I did differently was install su into /system/xbin, but /system/bin should be fine too.
Does 'su' and the SuperUser app work? If so, then that means your modification was successful.
Assuming that's all you did, I can't think of any reason why that would have broken 3G support. Is everything else 100% stock? If you flashed a custom kernel, it probably won't support 3G. The only one that I know of that DOES work is faux123's beta version.
Can you describe your issue a little more? Does the tablet display signal strength but just not get data? I'm assuming you disabled wifi to test, right?

Does 'su' and the SuperUser app work? If so, then that means your modification was successful.
Click to expand...
Click to collapse
Yes, they did. For example, I could install AdAway, which was able to change the hosts-file.
Assuming that's all you did, I can't think of any reason why that would have broken 3G support. Is everything else 100% stock? If you flashed a custom kernel, it probably won't support 3G. The only one that I know of that DOES work is faux123's beta version.
Click to expand...
Click to collapse
I didn't change anything. Just did the steps I described earlier...
Can you describe your issue a little more? Does the tablet display signal strength but just not get data? I'm assuming you disabled wifi to test, right?
Click to expand...
Click to collapse
Sure, I disabled WIFI. The signal strength display has all 4 bars (full reception), but no "H" or "3G" is displayed and also the bars are grey and not blue.
The weird thing is, that if I check "Use only 2G-Networks", I get blue bars with "G" and can access the internet...

kroegerama said:
Yes, they did. For example, I could install AdAway, which was able to change the hosts-file.
I didn't change anything. Just did the steps I described earlier...
Sure, I disabled WIFI. The signal strength display has all 4 bars (full reception), but no "H" or "3G" is displayed and also the bars are grey and not blue.
The weird thing is, that if I check "Use only 2G-Networks", I get blue bars with "G" and can access the internet...
Click to expand...
Click to collapse
Hrmmm....
I had the exact same issue (gray bars, no Internet), but it was because I flashed a non-3G compatible kernel. Once I replaced that, it started working properly again. I assume it worked fine prior to rooting, correct?
I still can't think of any reason why adding the su binary and SuperUser application would cause any issues with 3G connectivity. The two things have nothing to do with each other. Especially since you did it manually (which eliminates the possibility of some overzealous flashable zip. Hell, you didn't even flash a custom recovery but booted off it of it from your PC.
Have you tried rebooting since, to see if that cleared things up?
Just for the sake of eliminating them as a variable, why don't you try removing su and superuser.apk and see if that fixes it. I doubt it will, but it's worth a short.
The only other thing I can think of is for you to try reflashing the full 4.2 image (sans userdata) and see if that fixes the problem. Something else might have gotten broken and that should fix it.

Well, actually I don't know, if HSPA worked before rooting, because it was the first thing I did with my new N7
I rebooted a thousand times, toggled Airplane-Mode another thousand times and nothing helped. Now, I have reverted everything completely to stock:
Code:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader bootloader-tilapia-4.13.img
fastboot reboot-bootloader
fastboot flash radio radio-tilapia-1231_0.10.0_1021.img
fastboot reboot-bootloader
fastboot -w update image-nakasig-jop40c.zip
After that i locked the bootloader (oem lock). And guess what? I still can't get HSPA connection
I checked the SIM card in my Smartphone (N4 btw) and it worked fine, so it can't be the problem.
Do you think, I have to send my N7 back, because it has a hardware-error?

kroegerama said:
Well, actually I don't know, if HSPA worked before rooting, because it was the first thing I did with my new N7
I rebooted a thousand times, toggled Airplane-Mode another thousand times and nothing helped. Now, I have reverted everything completely to stock:
Code:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader bootloader-tilapia-4.13.img
fastboot reboot-bootloader
fastboot flash radio radio-tilapia-1231_0.10.0_1021.img
fastboot reboot-bootloader
fastboot -w update image-nakasig-jop40c.zip
After that i locked the bootloader (oem lock). And guess what? I still can't get HSPA connection
I checked the SIM card in my Smartphone (N4 btw) and it worked fine, so it can't be the problem.
Do you think, I have to send my N7 back, because it has a hardware-error?
Click to expand...
Click to collapse
Since you did that full flash (include the -w which wipes userdata), your N7 is completely back to stock.
There is definitely a possibility of a hardware issue, but before we assume that, there's one other possibility that comes to mind since you said you didn't know if it worked before.
What type of SIM card are you using? Is it the AT&T one that it came with? If so, did you activate it? If you did activate it, did you activate it through the tablet? When you turned off wifi, did it popup with a notification about logging into the AT&T network? If you activated it on the tablet, did you complete the whole process and receive the SMS and email?
And finally, the one thing that comes to mind as the possible problem if you are using that AT&T SIM card and it was activated:
What APN are you using? Mine came with two. The default is the one you use to register the SIM and activate it. The second APN is the normal usage one. After my activation, I was still on the registration APN and had to manually switch to the other one. If that is the case for you, and you are still on the registration APN, that could explain the issue. Try changing it to the other one and see if that fixes it.

No, I'm not at AT&T. Actually, I don't live in the US at all, I'm in Germany.
But I double-checked my APN-Settings and they seem to be set correctly. Also the SIM card is activated, as I'm able to use it in my Smartphone...
I've got one question, though: In the drop-down quick-settings pane, do you have a panel with your carrier name on it?
My Nexus 4 has one, but the Nexus 7 doesn't...

kroegerama said:
No, I'm not at AT&T. Actually, I don't live in the US at all, I'm in Germany.
But I double-checked my APN-Settings and they seem to be set correctly. Also the SIM card is activated, as I'm able to use it in my Smartphone...
I've got one question, though: In the drop-down quick-settings pane, do you have a panel with your carrier name on it?
My Nexus 4 has one, but the Nexus 7 doesn't...
Click to expand...
Click to collapse
Ah, well that eliminates my possible explanation.
No, I do not see that carrier name in either drop down. However, the carrier name should be on the bottom of the lock screen.
Are you 100% sure that the carrier in question will support the N7? I ask, because apparently people are having issues with T-Mobile SIM cards in the US. They work perfectly fine in a phone and/or other device, but when they put them in the N7 - nothing. Sounds like a similar issue. It seems like T-Mobile is blocking the N7 IMEIs from using standard voice or data packages.
I think the only real way to tell whether it's a hardware issue or not is if you have a friend with an N7 3G that you could try the SIM card in. That, or try buying some cheap prepaid one that you can use for a day or so.
But with what your saying, I'm thinking it very well might be a hardware issue for you.

Just to clarify:
- Which carrier is your SIM card from?
- Do you get 3G with that SIM in a smartphone? If so, which smartphone?

- My SIM is from "O2 - DE" (O2 Germany)
- Yes, I get 3G in a smartphone. It's a Nexus 4.
Are you 100% sure that the carrier in question will support the N7? I ask, because apparently people are having issues with T-Mobile SIM cards in the US. They work perfectly fine in a phone and/or other device, but when they put them in the N7 - nothing. Sounds like a similar issue. It seems like T-Mobile is blocking the N7 IMEIs from using standard voice or data packages.
Click to expand...
Click to collapse
Well, I'm not really sure, if my carrier blocks Tablets. I asked google, but no one else reported Tablet-blocking in the o2-network. But to be sure, I will test a friend's SIM card from vodafone tomorrow in my N7.
Sadly, I can't test my SIM in another N7-3G, because I don't know anyone who owns one.

So just to be sure, you are using the same APN settings on the N7 that you have in your Nexus 4?
Another thought - I have heard that with some European MVNOs, and even primary carriers that share networks with other providers, sometimes Android considers you to be roaming. Have you tried enabling data roaming just to see?
And when 2G-only is disabled, have you tried going into the mobile networks list to scan and ensure you are connected to the right network?

cmstlist said:
So just to be sure, you are using the same APN settings on the N7 that you have in your Nexus 4?
Click to expand...
Click to collapse
Yes, I used the correct settings in both devices...
cmstlist said:
Another thought - I have heard that with some European MVNOs, and even primary carriers that share networks with other providers, sometimes Android considers you to be roaming. Have you tried enabling data roaming just to see?
Click to expand...
Click to collapse
I enabled data roaming, but that also didn't help.
cmstlist said:
And when 2G-only is disabled, have you tried going into the mobile networks list to scan and ensure you are connected to the right network?
Click to expand...
Click to collapse
When I tap on the scan-button, it loads a few seconds and then says "Fehler bei der Netzwerksuche" (translated: "error while searching for networks")

kroegerama said:
When I tap on the scan-button, it loads a few seconds and then says "Fehler bei der Netzwerksuche" (translated: "error while searching for networks")
Click to expand...
Click to collapse
Yeah Android tends to do that a lot. Usually if that happens I toggle airplane mode off and on, and then try the list again. Sometimes it takes ten minutes of trying to finally get a successful scan for networks that lists all the carriers it can see.
Sent from my Galaxy Nexus using Tapatalk 2

Ok, I was now able to get to the carrier list and manually selected the correct one. But that didn't help either.
When the other SIM card, which I will test tomorrow, also doesn't get 3G access, I will send the device back to google and hope, they replace it for me...

Ok, seems like my N7 has a defect. I will call google to ask for a replacement N7...

kroegerama said:
Ok, seems like my N7 has a defect. I will call google to ask for a replacement N7...
Click to expand...
Click to collapse
Glad to hear you finally got confirmation. Based on your troubleshooting, that was looking more and more likely. I'm sure Google will replace it for you properly.

I just called google and they will send me a new N7. And when the new one arrives, I have to put my defect one in the box and send it back. That's very customer-friendly. So I can use the N7 (without 3G) until I get the new one

Related

How I Got My Xoom Upgraded, Rooted and Running 3.2.2

I sent my Xoom off for 4G upgrade and received it. Moto in its infinite wisdom sent me a new Xoom. So naturally, I started my Xoom and 3G/4G failed because I had a new MEID. Motor provided this new Xoom without syncing up with Verizon. So Verizon didn't have my MEID synced to my new 4G card. This explains the connectivity issues I had OOB.
I wish I new that before I went about a variety of flashing that failed in one way or the other. I did eventually get things to run with 3g/4g, and here s what I did.
1. Flash HRI66
2. Do a hard reset from Settings/Privacy
3. Reboot and fastboot flash recovery-Tiamat-R4c-100611-1150-cwm.img (http://forum.xda-developers.com/showthread.php?t=1074979)
4. Reboot into CWM and flash Android-HC-3.2.2-Stock+Rooted-1.1-SOLARNZ.zip (http://forum.xda-developers.com/showthread.php?t=1242524)
5. Flash HLK75C (http://dl.dropbox.com/u/22648028/HLK75Csystemboot.7z password is "AceXMachine" without the quotes)
Upon reboot both my WIFI and 3G/4G were restored.
When you reboot you should get prompted for HLK75D which is the market.
Peace, Happiness & Joy
I just saw this thread right before I was about to possibly enter a boot loop by trying something stupid. Thanks for posting! I will have to try this out tomorrow on my 3G XOOM.
Just FYI, Short/y posted the update for HLK75D HERE in case anyone wants to manually update.
So excited to read your post. Figured the system and boot images were the missing pieces to getting my problem solved. Unfortunately so far I have not seen any cellular data activity since getting up to HLK75D. It has been about an hour since rebooted and tried to activate.
I must still be missing a piece to the puzzle. When I look at a screen shot from droidlife under "About tablet" I see under Baseband version "CDMA_N_03.1A.54P ltedc_u_05.19.00". On my Xoom I only have the CDMA radio listed but everything else is the same. I also do not have any LTE settings under Mobile networks like I know I should based on the insert I got in the box back from Moto. This makes me think somehow I managed to corrupt the radios but I certainly never did that on purpose. Any idea how I can get the right radios to flash too?
---------- Post added at 06:02 PM ---------- Previous post was at 05:47 PM ----------
So excited to read your post. Figured the system and boot images were the missing pieces to getting my problem solved. Unfortunately so far I have not seen any cellular data activity since getting up to HLK75D. It has been about an hour since rebooted and tried to activate.
I must still be missing a piece to the puzzle. When I look at a screen shot from droidlife under "About tablet" I see under Baseband version "CDMA_N_03.1A.54P ltedc_u_05.19.00". On my Xoom I only have the CDMA radio listed but everything else is the same. I also do not have any LTE settings under Mobile networks like I know I should based on the insert I got in the box back from Moto. This makes me think somehow I managed to corrupt the radios but I certainly never did that on purpose. Any idea how I can get the right radios to flash too?
I have the same exact issue. Even bricked my xoom trying to resolve this, but fortunately I was able to unbrick it.
I did exactly the very same thing. Thanks Ace! Worked very well for me.
SemperAndroid said:
5. Flash HLK75C [/QUOTE
When you say "Flash", what should I be typing at the end of my command line
C:\Program Files (x86)\Android\android-sdk\platform-tools>?
Click to expand...
Click to collapse
Tinninches said:
SemperAndroid said:
5. Flash HLK75C
Click to expand...
Click to collapse
When you say "Flash", what should I be typing at the end of my command line
C:\Program Files (x86)\Android\android-sdk\platform-tools>?
Click to expand...
Click to collapse
The file downloads as a .7z I've tried to compress it and flash it from CWM off my external SD Card. I've tried flashing the two files individually. I've tried fastbooting them.
Could you possibly go into a bit more depth as to what you did in step 5?
SemperAndroid said:
I sent my Xoom off for 4G upgrade and received it. Moto in its infinite wisdom sent me a new Xoom. So naturally, I started my Xoom and 3G/4G failed because I had a new MEID. Motor provided this new Xoom without syncing up with Verizon. So Verizon didn't have my MEID synced to my new 4G card. This explains the connectivity issues I had OOB.
Click to expand...
Click to collapse
This was really annoying. The MEID Verizon had was a digit missing and didn't have my SIM card identified. I actually started to think the the new hardware wasn't hooked up correctly inside and was about to send it back in before I check the Verizon website.
SemperAndroid said:
I sent my Xoom off for 4G upgrade and received it. Moto in its infinite wisdom sent me a new Xoom. So naturally, I started my Xoom and 3G/4G failed because I had a new MEID. Motor provided this new Xoom without syncing up with Verizon. So Verizon didn't have my MEID synced to my new 4G card. This explains the connectivity issues I had OOB.
I wish I new that before I went about a variety of flashing that failed in one way or the other. I did eventually get things to run with 3g/4g, and here s what I did.
1. Flash HRI66
2. Do a hard reset from Settings/Privacy
3. Reboot and fastboot flash recovery-Tiamat-R4c-100611-1150-cwm.img (http://forum.xda-developers.com/showthread.php?t=1074979)
4. Reboot into CWM and flash Android-HC-3.2.2-Stock+Rooted-1.1-SOLARNZ.zip (http://forum.xda-developers.com/showthread.php?t=1242524)
5. Flash HLK75C (http://dl.dropbox.com/u/22648028/HLK75Csystemboot.7z password is "AceXMachine" without the quotes)
Upon reboot both my WIFI and 3G/4G were restored.
When you reboot you should get prompted for HLK75D which is the market.
Peace, Happiness & Joy
Click to expand...
Click to collapse
I followed these steps and everything seems to be working. I can't verify 4G works since it's not available here yet, but 3G works fine. However, my Build Number still shows HLK75C. I thought something might have went bad with the HLK75D reboot/install (battery was low) so I reflashed the 75C boot & system thinking it would reprompt for the update. It didn't. Check for updates says I'm up to date. Anyone else have this issue? Does the Build Number not change after the update?
This actually did not work for me. These were the steps I did exactly:
1) Flashed to HRI66.
2) Booted up and skipped verification and setting up a Google account. Did a hard reset through the settings.
3) Upon reboot, I flashed the Tiamat recovery image.
4) Upon reboot, I entered the CWM and flashed Solarnz's 3.2.2 image. Unfortunately, when I use the 1.1 version from his thread, I get an error telling me that it was "bad", so I had to use the original version that he posted. (This might be why it didn't work, I'm not sure.)
5) Upon reboot, I flashed the HLK75C images in Fastboot.
I loaded up and I was on 3.2.2 just fine, with the HLK75C build, but my kernel didn't have the "LTC" part in it like it did when I received it from Verizon. I still have full bars but no 3G/4G connectivity. Wi-Fi works fine.
When I take out my SIM card, I obviously lose all the bars.
[EDIT] I noticed in another thread that someone brought up the question whether people with connectivity problems were wiping the cache and davlik every time they flashed. Is that something I should be doing in CWM after flashing anything? Yeah, I'm kind of new and dumb to this. [/EDIT]
Cannot Activate on Verizon after 4G Upgrade
When I first got my Xoom back and booted it up, it imediately stuck at the logo screen and said Failed to boot LNX 0x0004 in red text and then a line below it said Starting RSD Mode 2. I tried rebooting several times but it always went to the same place. I did the HRI39 sbf and got it back up and running, then performed these steps.
1. Flash HRI66
2. Do a hard reset from Settings/Privacy
3. Reboot and fastboot flash recovery-Tiamat-R4c-100611-1150-cwm.img (http://forum.xda-developers.com/show....php?t=1074979)
4. Reboot into CWM and flash Android-HC-3.2.2-Stock+Rooted-1.1-SOLARNZ.zip (http://forum.xda-developers.com/show....php?t=1242524)
5. Flash HLK75C (http://dl.dropbox.com/u/22648028/HLK75Csystemboot.7z password is "AceXMachine" without the quotes)
I now have my Xoom on HLK95D as it should be and can connect to WiFi just fine but it does not acknowledge that the Xoom has 4G and will not activate with Verizon through 3G either. If I go into settings, About Tablet and Status, my Xoom shows Network: Unknown, Mobile network type: Unknown, MDN: Unknown, MIN: Unknown and MEID: Unknown.
I am wondering if I happened to be an unlucky one who got a bad 4G card. My understanding is that the new 4G card not only adds 4G but also replaces the built in 3G Radio chip. I did check my MEID # before I loaded the ROM that supports the 4G card and it did show my original MEID # for my Xoom but once I load a ROM that has the drivers for the 4G card, they disappear. Any thoughts
dlundy said:
I followed these steps and everything seems to be working. I can't verify 4G works since it's not available here yet, but 3G works fine. However, my Build Number still shows HLK75C. I thought something might have went bad with the HLK75D reboot/install (battery was low) so I reflashed the 75C boot & system thinking it would reprompt for the update. It didn't. Check for updates says I'm up to date. Anyone else have this issue? Does the Build Number not change after the update?
Click to expand...
Click to collapse
Figured out my issue with the 75D update. It was not installing automatically due to CWM reccovery. I had to pull the update from the \cache folder and install it manually through CWM. Of course, it overwrote recovery and killed root so I had to reflash CWM and reroot with the universal root zip, but it is now on HLK75D and working properly. I still can't test 4G, but 3G is working.

Flashed Verizon RUU, cellular radios, GPS, and camera now broken

Hey all,
So, a little backstory: I got this HTC 10 from Sprint not too long ago, and little did I know that I would be stuck with Sprint unless I reflash the phone firmware. (after research, asking HTC and Sprint, I received misinformation from reps stating that the phone would work on Verizon with just a carrier unlock issued over the air). Moral of the story: don't rely on customer service :silly:.
Fast forward to now, and I have rooted (temporarily to run Sunshine), S-OFF'd (using Sunshine), changed the CID (for Verizon), and flashed the newest Verizon RUU that developer Dottat kindly posted here.
That worked, full LTE, but then whenever the camera or GPS were accessed by any application, the phone would freeze with a black screen (though it seemed something was still running in the background, as notification sounds would still play, and I could exit by pressing the home button and waiting about a minute). After this, I tried flashing the Viper ROM just for kicks, but then the cellular radios only functioned with 3G coverage (no LTE in a coverage area), and GPS was still broken (the camera issue was fixed with this flash for some reason).
Unfortunately (or maybe not), I am pretty sure /system has been wiped multiple times. I also ran
Code:
htc_fastboot erase modemst1
htc_fastboot erase modemst2
after each install of a new ROM, then performed a factory reset from recovery (just a factory reset, nothing more).
Now I went ahead and used an official ROM from HTC's website in an attempt just to get full functionality working on any carrier. I flashed the USA unlocked variant (and changed the CID to BS_US001. MID is still 2PS650000), but now I am experiencing more missing functionality. The camera and GPS are still missing, and now the SIM card is not detected (when entering the access point names dialog, a message pops up stating that there is no SIM, or SIM error when I am using an activated AT&T SIM). When I enter the test menu (*#*#4636#*#*) and select any option for network mode other than what is default (LTE/CDMA), the new option won't 'stick' (it returns to default after a few seconds).
This sounds to me like there is stale firmware on the device from a previous flash, or that the firmware for these core peripherals is corrupt. Is there a way I can get these devices working again? Or am I now stuck with a bricked device ? I do still have a backup I took of what was installed stock by Sprint (all except for /data...but I don't need that partition, right?)
EDIT: Mods, I am terribly sorry! I meant to post this in HTC 10 Q&A. I don't see a way to delete a thread, so hopefully we can move it.
MrFarquad said:
Hey all,
So, a little backstory: I got this HTC 10 from Sprint not too long ago, and little did I know that I would be stuck with Sprint unless I reflash the phone firmware. (after research, asking HTC and Sprint, I received misinformation from reps stating that the phone would work on Verizon with just a carrier unlock issued over the air). Moral of the story: don't rely on customer service :silly:.
Fast forward to now, and I have rooted (temporarily to run Sunshine), S-OFF'd (using Sunshine), changed the CID (for Verizon), and flashed the newest Verizon RUU that developer Dottat kindly posted here.
That worked, full LTE, but then whenever the camera or GPS were accessed by any application, the phone would freeze with a black screen (though it seemed something was still running in the background, as notification sounds would still play, and I could exit by pressing the home button and waiting about a minute). After this, I tried flashing the Viper ROM just for kicks, but then the cellular radios only functioned with 3G coverage (no LTE in a coverage area), and GPS was still broken (the camera issue was fixed with this flash for some reason).
Unfortunately (or maybe not), I am pretty sure /system has been wiped multiple times. I also ran
Code:
htc_fastboot erase modemst1
htc_fastboot erase modemst2
after each install of a new ROM, then performed a factory reset from recovery (just a factory reset, nothing more).
Now I went ahead and used an official ROM from HTC's website in an attempt just to get full functionality working on any carrier. I flashed the USA unlocked variant (and changed the CID to BS_US001. MID is still 2PS650000), but now I am experiencing more missing functionality. The camera and GPS are still missing, and now the SIM card is not detected (when entering the access point names dialog, a message pops up stating that there is no SIM, or SIM error when I am using an activated AT&T SIM). When I enter the test menu (*#*#4636#*#*) and select any option for network mode other than what is default (LTE/CDMA), the new option won't 'stick' (it returns to default after a few seconds).
This sounds to me like there is stale firmware on the device from a previous flash, or that the firmware for these core peripherals is corrupt. Is there a way I can get these devices working again? Or am I now stuck with a bricked device ? I do still have a backup I took of what was installed stock by Sprint (all except for /data...but I don't need that partition, right?)
EDIT: Mods, I am terribly sorry! I meant to post this in HTC 10 Q&A. I don't see a way to delete a thread, so hopefully we can move it.
Click to expand...
Click to collapse
A MOD should move it soon.
I am not the best here, but hopefully can be of some help.
I would just superCID, save a step for flashing RUU's.
So, when you flash the Verizon RUU, does camera work?
(if you RUU and only have 3g, wipe the modems to get 4g back)
If your trying to use the phone on Verizon I would do the following:
1) Change your CID to Super, 11111111
2) Flash the US Unlocked RUU, http://www.htc.com/us/support/rom-downloads.html#unlocked
3) After it fully boots, reboot into the bootloader & flash the Verizon radio, http://forum.xda-developers.com/verizon-htc-10/how-to/vzw-how-to-unlocked-model-vzw-t3376743
4) Make sure the Preferred Network is set to Global, Settings>Mobile data>Preferred Network
5) Get to the secret menu *#*#4636#*#*, and set the preferred network type to "CDMA/EvDO/GSM/WCDMA/LTE Auto"
I use a Verizon model with the US Unlocked firmware. As far as custom ROMs, some work with Verizon's network and some don't. I'm sure theres a workaround but I've stuck with the US Unlocked firmware, and just use Xposed for any tweaks/mods.
If your trying to use it on AT&T and the radio from the US unlocked RUU should work.
andybones said:
A MOD should move it soon.
I am not the best here, but hopefully can be of some help.
I would just superCID, save a step for flashing RUU's.
So, when you flash the Verizon RUU, does camera work?
(if you RUU and only have 3g, wipe the modems to get 4g back)
Click to expand...
Click to collapse
Used to be a guy around here we could trust to help.
Sent from my HTC6545LVW using Tapatalk

[N910S] got it to work! Exynos Korean model, Eng-only custom ROM, no bloatware!

OK, *FIRST TIME POSTER HERE* so please excuse any unintentional ignorance of rules or etiquette.
I'm just super excited to get this phone working the way I like it, and it's all thanks to xda so I was moved to create an account to express my thanks AND hopefully help a few people back.
How? Well after reading through pretty much everything I could find on the N910S here and elsewhere, it seems that no-one (yet?) has been able to confirm a working mod that meets the following:
1. N910S Exynos Korean version
2. Some kind of custom English only ROM that removes the Korean characters from keypad and other network-apps
3. Removed bloatware
4. Easy-to-follow, how-to guide
Seems there were quite a few ppl who wanted the same thing so I just want to let you know what I did to get it working.
*PLEASE NOTE* Everything contained in this summary was found through over a week of tedious reading, research, trial & error. BUT in the end all the necessary information was contained, or linked to, in xda forums. It's just that all the relevant information and files were scattered over many different threads and topics. I'm just collating it all here to hopefully make it easier for the next person to find.
Background info: I'm technically competent but relatively new to phone modding - I've only rooted my HTC E8 before this to remove bloatware. This is my second project. I live in HK and started with a completely stock OEM Note4 N910SKSU2DPK2 after a factory reset. I then did the steps below in order (not including many failed attempts and re-starts, of course) These are just the broadstrokes of what I did, if you need to know how to do each step in detail then please search the forum. It's quite clear and there's no need for me to repeat it here anyway
As it's my first post and I'm in a rush to leave the house soon, I have not bothered with screenshots or links - I'm happy to provide if someone can tell me if the preferred method is link to the thread where the info was found, or you just want a link to the files I used. Again, they were all found through links in threads on xda anyway but I'll have to spend some time to find them again as I didn't bookmark them. Also, if you want the files someone will have to tell me how to upload them here. The filenames/packages are given in [brackets] so maybe you can just search for them?
0. Reminder to backup your phone and data first!
1. Root - was really easy using CF AutoRoot [CF-Auto-Root-trelteskt-trelteskt-smn910s] Just download to your PC and package includes Odin, which for first-timers is the official Samsung software used to flash to your phone.
2. Download:
- ClockWorkMod [n910s-cwm-recovery-6.0.5.1(1113).tar]
- SuperSU [SuperSU-v2.79-201612051815.zip]
- C Mod ROM [C_ROM_N910s.v2HNY.zip] (the site is Korean-based but google translate of the page was enough for a non-Korean like myself)
- N910S DPK2 modem file [N910S-20170114T050808Z.zip] The original thread had links to every modem variant they knew of, so should work with other S/L/K variants BUT of course I haven't tried them.
3. Copy files for SuperSU, CMod ROM, and DPK2 modem onto an external SD card and insert into your phone.
4. Put your phone into Download Mode (from power-off state, hold Vol Down + Home + Power)
5. Run Odin on your PC, connect phone. On Odin, click <AP> and select CWM file. Do not check or modify any other options. Click <Start> to flash CWM recovery to your phone.
6. Once it's done, disconnect from PC, and restart your phone into the new custom recovery mode (from power-off state, hold Vol Up + Home + Power)
7. Choose Install from zip and select the SuperSU file from your ext SD card. (I think this step may not be strictly necessary as it's part of CF AutoRoot, but SuperSU is always handy to have anyway)
8. Reboot into Recovery mode again (available in Advanced menu)
9. Install zip - now choose the CMod ROM file. Reboot into system and have a look around the new UI. It was at this stage that I noticed two things: my HK carrier SIM was not recognised, and as the ROM boasts some Note 5 features the Always On Display function would cause my Note 4 to not be able to wake up once the screen was turned off (manually or via time-out). I had to pull out the battery, restart phone, go straight into Settings -> Display and turn off the Always On Display functionality.
10. To fix the SIM card not recognised, reboot into Recovery Mode again and Install zip - choose the DPK2 modem file (or whichever version your phone's modem is). Restart phone, wait a few minutes and SIM should now work.
*ONE REMAINING ISSUE* Even tho my SIM is 4G/LTE, it seems to be connecting at HSUPA only. Could be reception, I'll check later. But I believe there's a way to select different LTE bands through secret codes or menu, not sure but I'll try that as well later and update if it works.
That's it - hope it helps! Thanks for reading, and don't forget I'm new to this AND a first time poster so be kind in comments/questions please
Update and question
Kookinen said:
*ONE REMAINING ISSUE* Even tho my SIM is 4G/LTE, it seems to be connecting at HSUPA only. Could be reception, I'll check later. But I believe there's a way to select different LTE bands through secret codes or menu, not sure but I'll try that as well later and update if it works.
Click to expand...
Click to collapse
So by following steps in this thread https://forum.xda-developers.com/note-4/help/note-4-sm-n910s-sk-telecom-issues-t2929571/page2 for SKT, I was able to change to LTE Band 3 or 7 (which is what my sim provider offers) and get an LTE signal for data, BUT then I lose voice call functionality. If I choose Band 3 Preferred, it says band changed success, but just connects via HSUPA and I get voice, but no LTE (just like before, or if I choose Automatic)
Can anyone please help me figure this out? How can I get voice AND LTE? Many thanks in advance!
PS - also after I reflashed my modem.bin the baseband changed from N910SKSU2DPK2 to N910SKSU0DPK2. I don't know what this means nor if it has anything to do with the problem I've described above? Can anyone help to explain? Thanks...
Kookinen said:
So by following steps in this thread https://forum.xda-developers.com/note-4/help/note-4-sm-n910s-sk-telecom-issues-t2929571/page2 for SKT, I was able to change to LTE Band 3 or 7 (which is what my sim provider offers) and get an LTE signal for data, BUT then I lose voice call functionality. If I choose Band 3 Preferred, it says band changed success, but just connects via HSUPA and I get voice, but no LTE (just like before, or if I choose Automatic)
Can anyone please help me figure this out? How can I get voice AND LTE? Many thanks in advance!
PS - also after I reflashed my modem.bin the baseband changed from N910SKSU2DPK2 to N910SKSU0DPK2. I don't know what this means nor if it has anything to do with the problem I've described above? Can anyone help to explain? Thanks...
Click to expand...
Click to collapse
Band 3 and 7 are supposed to stick with default settings. I tried it once during my trip to Malaysia and it worked flawlessly. Any chance you might want to contact your carrier?
The trick to switch from 4G-3G-4G works. ATT band 5 preferred
Kookinen said:
*ONE REMAINING ISSUE* Even tho my SIM is 4G/LTE, it seems to be connecting at HSUPA only. Could be reception, I'll check later. But I believe there's a way to select different LTE bands through secret codes or menu, not sure but I'll try that as well later and update if it works.
Click to expand...
Click to collapse
Have you tried switching to 3g only, then switching it back to 4g when available in your phone setting??
I had similar issue with 4g and apparently, this strangely simple trick solved my problem.
Anyway, I tried to download the ROM from the Achonapp but took me ages and I couldn't flash it either. May I know where you got the ROM from?
nosediger said:
Have you tried switching to 3g only, then switching it back to 4g when available in your phone setting??
I had similar issue with 4g and apparently, this strangely simple trick solved my problem.
Anyway, I tried to download the ROM from the Achonapp but took me ages and I couldn't flash it either. May I know where you got the ROM from?
Click to expand...
Click to collapse
Tried your suggestion but now it shows No Service
*update* actually I think your "trick" works... After switching to 3G only, it wouldn't switch back to 4G and showed No Service. I rebooted the phone with a different sim and after a few minutes, it automatically connected to 4G AND I now have voice as well! So, all is working properly now and I'm a happy camper. Reboot with the original sim and still works and connects to 4G. So I think you're right it just needed to be "forced" to select 4G preferred. Thanks for the tip!
Yeah I got it from achonapp as well and it took a while - I think I left it going overnight. But the ROM did work for me. If anyone wants the file direct I'm happy to put it up on my google drive if it's not against forum rules etc.
But since then I've switched to miui8 which is also working pretty much flawlessly as daily ROM, but I haven't tested every single little feature of course. If you wanna try it - https://forum.xda-developers.com/showpost.php?p=70596588&postcount=797

Moto X Play - No incoming calls, callers get 'busy' tone. No notifications either.

Hi, bought my daughter an X Play, October 2015. A few months ago we realised that whenever anyone tries to call the phone, they just get the 'busy' tone. Daughter also says notifications don't come through, and options have disappeared from the pull-down menu.
The phone makes outgoing calls with no problem, no problem browsing online, no problem with using Snapchat, Whatsapp etc, but she has to check for messages manually as she isn't receiving any notifications. As far as I can see, no option has been accidentally selected to turn notifications off.
Is this a known problem? If anyone can list the things I can try to make the phone fully functional again, it would be highly appreciated. We have not made any modifications to the phone at all, it's just the standard phone, not flashed any custom ROMS etc (I'm really not technically minded enough to do it if I wanted to!). Hope someone can help.
Many thanks, Andy.
I have similar problem,but people say that they call me normally.my phone doesnt ring or screen opens,or missed call appears anywhere.very weird.
Reboot > reset network settings > factory reset > reflash radio firmware > reflash whole firmware. If this doesn't help, there's 99% chance you've got hardware issue.
thanks.where can I find radio firmware?
kos25k said:
thanks.where can I find radio firmware?
Click to expand...
Click to collapse
You need to download the whole firmware. The NON-HLOS.bin file is for your radio. You also need to erase modem stats after flashing it. The fastboot commands are as follows:
Code:
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
thanks.I will wait till new firmware with January OTA included,is ready for download,or someone creates a flashable rom and then I will do this.
minimale_ldz said:
Reboot > reset network settings > factory reset > reflash radio firmware > reflash whole firmware. If this doesn't help, there's 99% chance you've got hardware issue.
Click to expand...
Click to collapse
Many thanks for responding. I've never flashed or reflashed anything, so I think this is something beyond my capability. I have some techie friends who I'm sure can help with this though. If it needs anything doing to it beyond changing some settings, clearing the cache, or factory reset, I don't have a clue! But at least now I have some info I can show a friend when I ask them to see if they can sort it for me, in return for booze. It seems to be the currency of my techie mates.
Thanks again for the info.
kos25k said:
thanks.I will wait till new firmware with January OTA included,is ready for download,or someone creates a flashable rom and then I will do this.
Click to expand...
Click to collapse
You can clear modemstats without firmware, it helps sometimes. Just execute
Code:
fastboot erase modemst1
fastboot erase modemst2
And roms are very unlikely to contain radio files. They usually have system and kernel only.
---------- Post added at 18:54 ---------- Previous post was at 18:45 ----------
77andyb said:
Many thanks for responding. I've never flashed or reflashed anything, so I think this is something beyond my capability. I have some techie friends who I'm sure can help with this though. If it needs anything doing to it beyond changing some settings, clearing the cache, or factory reset, I don't have a clue! But at least now I have some info I can show a friend when I ask them to see if they can sort it for me, in return for booze. It seems to be the currency of my techie mates.
Thanks again for the info.
Click to expand...
Click to collapse
No prob. What you can also try yourself is dialing
Code:
*#*#4636#*#*
This will open Testing menu. In Phone information section you can set preferred network type and check the following settings:
GSM only
WCDMA only
LTE only
(2G, 3G, 4G respectively) and see if your problem persists on all types of network. It could be that your phone will work normally on 2G but not on 3G for some reason, so it's still usable. If you change these settings they will persist until reboot.
BTW: is your Home button working?
if we clear modemstats is safe?I mean we do this with commands and then just reboot?
kos25k said:
if we clear modemstats is safe?I mean we do this with commands and then just reboot?
Click to expand...
Click to collapse
should be ok. some say it's better to remove sim card when you do it, but I never've seen explanation why exactly.
ok thanks i'll try.can u also remind me the process to make these commands?I have forgotten the process!
kos25k said:
ok thanks i'll try.can u also remind me the process to make these commands?I have forgotten the process!
Click to expand...
Click to collapse
The process is the same as when you flash firmware in fastboot, so you need pc with motorola drivers and fastboot software, you then boot your phone in fastboot mode (bootloader) and enter two commands:
Code:
fastboot erase modemst1
fastboot erase modemst2
thanks dude.I think I press and hold vol down while power up..but if I wait to flash the new upcoming rom...shouldnt be the same as I would flash the modem?I confused a little sorry,because you said roms doesnt contain radios...just system and kernel files.
kos25k said:
thanks dude.I think I press and hold vol down while power up..but if I wait to flash the new upcoming rom...shouldnt be the same as I would flash the modem?I confused a little sorry,because you said roms doesnt contain radios...just system and kernel files.
Click to expand...
Click to collapse
Yes, just turn off the phone and then powe and volume down and you're in fastboot mode.
and for the second thing - firmware is everything - system, kernel, modem, recovery, bootloader and all the other stuff and that's what you flash in fastboot. Rom is just system+kernel we flash in TWRP.
77andyb said:
Hi, bought my daughter an X Play, October 2015. A few months ago we realised that whenever anyone tries to call the phone, they just get the 'busy' tone. Daughter also says notifications don't come through, and options have disappeared from the pull-down menu.
The phone makes outgoing calls with no problem, no problem browsing online, no problem with using Snapchat, Whatsapp etc, but she has to check for messages manually as she isn't receiving any notifications. As far as I can see, no option has been accidentally selected to turn notifications off.
Is this a known problem? If anyone can list the things I can try to make the phone fully functional again, it would be highly appreciated. We have not made any modifications to the phone at all, it's just the standard phone, not flashed any custom ROMS etc (I'm really not technically minded enough to do it if I wanted to!). Hope someone can help.
Many thanks, Andy.
Click to expand...
Click to collapse
I had this issue. Reflash the rom or install a custom rom. This isn't a hardware bug, simply another unexplained weird android bug
minimale_ldz said:
Yes, just turn off the phone and then powe and volume down and you're in fastboot mode.
and for the second thing - firmware is everything - system, kernel, modem, recovery, bootloader and all the other stuff and that's what you flash in fastboot. Rom is just system+kernel we flash in TWRP.
Click to expand...
Click to collapse
really??I thought flashable roms are same as u flash rom with commands from pc!!!! ???
minimale_ldz said:
You can clear modemstats without firmware, it helps sometimes. Just execute
Code:
fastboot erase modemst1
fastboot erase modemst2
And roms are very unlikely to contain radio files. They usually have system and kernel only.
---------- Post added at 18:54 ---------- Previous post was at 18:45 ----------
No prob. What you can also try yourself is dialing
Code:
*#*#4636#*#*
This will open Testing menu. In Phone information section you can set preferred network type and check the following settings:
GSM only
WCDMA only
LTE only
(2G, 3G, 4G respectively) and see if your problem persists on all types of network. It could be that your phone will work normally on 2G but not on 3G for some reason, so it's still usable. If you change these settings they will persist until reboot.
BTW: is your Home button working?
Click to expand...
Click to collapse
Hi, no, the Home button isn't working. I'll run through the tests you've suggested but I think I need to put a SIM card in, as my daughter removed it to put into her new iPhone Not my decision, all down to mother... think I have a spare PAYG SIM around the house I can use though. Thanks for the suggestions.
77andyb said:
Hi, no, the Home button isn't working. I'll run through the tests you've suggested but I think I need to put a SIM card in, as my daughter removed it to put into her new iPhone Not my decision, all down to mother... think I have a spare PAYG SIM around the house I can use though. Thanks for the suggestions.
Click to expand...
Click to collapse
Don't bother the tests. If Home button is not working then your phone went into setup mode, it's a software bug and you can fix it yourself.
1. get Activity Launcher from Play Store
2. find Setup Wizard on the list of All Activities
3. launch com.google.android.setupwizard.SetupExit activity
Your phone should be back to normal.
minimale_ldz said:
Don't bother the tests. If Home button is not working then your phone went into setup mode, it's a software bug and you can fix it yourself.
1. get Activity Launcher from Play Store
2. find Setup Wizard on the list of All Activities
3. launch com.google.android.setupwizard.SetupExit activity
Your phone should be back to normal.
Click to expand...
Click to collapse
I think it is!!! home button works, notifications showing, pull down toolbar shows all options, this really seems to have sorted it! I need to test with a SIM inserted, but whatever the hell you told me to do, seems to have worked....thanks so much! We now have a very useful spare Smartphone. I'll comment again once I've done a full test with SIM inserted etc, let you know if it really is all good. Cheers for now! Andy.
hello again.I reflashed firmware with pc commands.it seems that I have the issue again.my phone doesnt ring at all!which commands can I execute without reflashing again the whole firmware??thanks.

6P No Service | Vivo

Okay, who has followed my posts know my new Nexus 6P, which I bought from a guy wasn't recognizing my SIM card. (I'm apparently the second owner. He said that he imported the device so I assume that he was really the first owner)
Luckily I made it recognize the SIM card putting a tape on it at the SIM tray, but now my device keeps at No Service | Vivo.
Vivo is my carrier, but no matter what I do my Network Type at *#*#4636#*#* keeps at LTE/*I don't remember/CDMA. I've tried changing it in Settings/more/cellular network but didn't work either. Removing and putting SIM tray again didn't work as well.
Flashed factory image didn't work too. Also, flashing custom ROM didn't work.
Someone have a solution for it, please?
Since I fixed the unrecognized SIM with a simple tape I can believe something will fix this No Service trouble.
Had the same issue at my wifes old opo, the simpins inside the phone were broken. May yours are only bent if your lucky, hard to check without opening the backcover. Can you try another sim card first, friends, family or neighbors??? Or you need one tape more I had to replace the mobo. Took one of a broken phone cheap from the bay.
coremania said:
Had the same issue at my wifes old opo, the simpins inside the phone were broken. May yours are only bent if your lucky, hard to check without opening the backcover. Can you try another sim card first, friends, family or neighbors??? Or you need one tape more I had to replace the mobo. Took one of a broken phone cheap from the bay.
Click to expand...
Click to collapse
I'll try to tape it even more. I've checked over xda and a guy fixed it flashing February factory image. I'll try it as soon as I arrive home.
Debuffer said:
I'll try to tape it even more. I've checked over xda and a guy fixed it flashing February factory image. I'll try it as soon as I arrive home.
Click to expand...
Click to collapse
Hope you don't have to stay on it, good luck
Edit: is your simcardholder ok ?? May one site hangs and you don't have contact to the right pin.
Edit2: can you see the pins by using a bright flashlight ???
coremania said:
Hope you don't have to stay on it, good luck
Edit: is your simcardholder ok ?? May one site hangs and you don't have contact to the right pin.
Edit2: can you see the pins by using a bright flashlight ???
Click to expand...
Click to collapse
The device recognize the SIM, but it doesn't get network.
Debuffer said:
The device recognize the SIM, but it doesn't get network.
Click to expand...
Click to collapse
Yes, I get that, this was exactly my issue with the opo. Recognize but no service.
Your phone may be stuck on USA bands. The hidden menu apparently is buggy and once USA bands is selected by accident, you can't change it back. 7.1.2 was supposed to have added the ability to switch back to Auto, but I cannot confirm that. Look here. I know you are new, so to access the menu, youopen up the dialer and type this in- *#*#4636#*#*
I just noticed that I can switch to any (PRL) network in *#*#4636#*#*, but can't switch to LTE, GSM or WCDMA without the (PRL)...
v12xke said:
Your phone may be stuck on USA bands. The hidden menu apparently is buggy and once USA bands is selected by accident, you can't change it back. 7.1.2 was supposed to have added the ability to switch back to Auto, but I cannot confirm that. Look here. I know you are new, so to access the menu, youopen up the dialer and type this in- *#*#4636#*#*
Click to expand...
Click to collapse
I'm download it and very hopeful because it worked for many people... Anyway, this are the bands I've available for now:
United States
Cellular 800
PCS
Class 10 (800Mhz-Secondary)
Hopefully this PureNexus gonna fix this issue.
Debuffer said:
I'm download it and very hopeful because it worked for many people... Anyway, this are the bands I've available for now:
United States
Cellular 800
PCS
Class 10 (800Mhz-Secondary) Hopefully this PureNexus gonna fix this issue.
Click to expand...
Click to collapse
Sounds like you are stuck on USA bands. Good luck.
v12xke said:
Sounds like you are stuck on USA bands. Good luck.
Click to expand...
Click to collapse
My Nexus 6 (shamu), which works perfectly with the same Nano SIM, has all the Network Bands I quoted in my previous post + Class 15.
Not sure if my device should use Class 15, but I'm (was) using the same ROM on both (PureNexus Shamu and PureNexus Angler) and the angler doesn't work.
Download Chroma ROM to test it since the PureNexus quoted in the post you sent me is bootlooping in the Google Logo.
Just an EDIT...
I can select the Automatic bands selector, and it says that the Automatic was selected, which still doesn't give me any signal strenght.
Debuffer said:
Just an EDIT... I can select the Automatic bands selector, and it says that the Automatic was selected, which still doesn't give me any signal strenght.
Click to expand...
Click to collapse
In Chroma or PN? You may need to fastboot format your partitions, especially System coming from a custom ROM. Why not step back and fastboot format system, userdata and cache then reflash the custom PN ROM to try and get it booted. It also may take some time after changing bands to Auto. Maybe 5-10 minutes max. Let it settle.
v12xke said:
In Chroma or PN? You may need to fastboot format your partitions, especially System coming from a custom ROM. Why not step back and fastboot format system, userdata and cache then reflash the custom PN ROM to try and get it booted. It also may take some time after changing bands to Auto. Maybe 5-10 minutes max. Let it settle.
Click to expand...
Click to collapse
I'm now downloading a factory image for 6.0.1 then I'll flash PureNexus again. I read in the thread that it needs the 6.0.1 vendor to boot.
I'll flash this 6.0.1 stock then I'll flash PureNexus. Fingers crossed to this work.
Anyway, can we talk via Telegram? You look like know more than I and I would love to keep talking to you during this proccess.
I'm @Debuffer.
v12xke said:
In Chroma or PN? You may need to fastboot format your partitions, especially System coming from a custom ROM. Why not step back and fastboot format system, userdata and cache then reflash the custom PN ROM to try and get it booted. It also may take some time after changing bands to Auto. Maybe 5-10 minutes max. Let it settle.
Click to expand...
Click to collapse
And I meant I could select the Automatic Band in the latest 7.1.2 PN and/or stock rom.
Unhappily it didn't work.
Still No Service|Vivo
Just came from the tech and he tested the antenna. Everything is working great with the antenna. Anyway, I can't get any signal. He said maybe there's a problem in the SIM slot, and he showed me that the 6P is dual SIM
He told me to try finding a dual SIM tray and put my SIM in the slot 2.
Someone have any idea about what to do with it?

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