Massive LTE issues on Verizon - X Style (Pure) Q&A, Help & Troubleshooting

So I've got a US Moto X Pure, XT1575, currently running TruPure XMM 2.9, just installed a few days ago, and while driving around with my brother I've noticed that my 4G switches to 3G and loses conncections all the time, while his Verizon LG V10 maintains a rock-solid LTE connection. I've also found that in many, many areas, if i run a speed test, most of the time it tells me less than 1mbps down, and usually 0-0.02 up, his get's normal speeds. I've even found areas where I get 40+ mbps down, 0 up.
Is it the modem firmware? Did I break it? I have opened it up a few times but I was always very gentle and triple checked all connections before re-installing the casing.
Is it because of the CDMA/GSM thing? My old Note 3 before this phone didn't have any of these problems, my brother's V10 doesn't either.
I'm losing my mind trying to fix it and nothing's worked.

TallgeeseIV said:
So I've got a US Moto X Pure, XT1575, currently running TruPure XMM 2.9, just installed a few days ago, and while driving around with my brother I've noticed that my 4G switches to 3G and loses conncections all the time, while his Verizon LG V10 maintains a rock-solid LTE connection. I've also found that in many, many areas, if i run a speed test, most of the time it tells me less than 1mbps down, and usually 0-0.02 up, his get's normal speeds. I've even found areas where I get 40+ mbps down, 0 up.
Is it the modem firmware? Did I break it? I have opened it up a few times but I was always very gentle and triple checked all connections before re-installing the casing.
Is it because of the CDMA/GSM thing? My old Note 3 before this phone didn't have any of these problems, my brother's V10 doesn't either.
I'm losing my mind trying to fix it and nothing's worked.
Click to expand...
Click to collapse
Have you tried going into fastboot and erasing modemst1 and modemst2?

hbar98 said:
Have you tried going into fastboot and erasing modemst1 and modemst2?
Click to expand...
Click to collapse
Not yet. First time I'm getting this advice. What does erasing them do?

TallgeeseIV said:
Not yet. First time I'm getting this advice. What does erasing them do?
Click to expand...
Click to collapse
Well, as far as I can tell it erases the info in the modem partitions. I'm not really sure. But when people have gps or lte issues, erasing them seems to help. I've been on a flashing binge lately, and I erase them pretty much in between every flash with no issue.

hbar98 said:
Well, as far as I can tell it erases the info in the modem partitions. I'm not really sure. But when people have gps or lte issues, erasing them seems to help. I've been on a flashing binge lately, and I erase them pretty much in between every flash with no issue.
Click to expand...
Click to collapse
Ok, does it need to be done before flashing a new modem? Or do you erase them after so it rebuilds them automatically or something?

I flash the modem, then erase modemst1, modemst2.

Ok, so let's see if I did this right:
I went and extracted 'NON-HLOS.bin' and 'fsg.mbn' from the latest stock firmware in this post: http://forum.xda-developers.com/moto-x-style/development/pure-firmware-tuff-wip-t3224833
Then I booted into fastboot mode and used these commands:
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash modem NON-HLOS.bin
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot reboot
I found these as a fix for a Moto X Style having similar connectivity issues in this post: http://forum.xda-developers.com/moto-x-style/help/baseband-imei-t3283141
Then i rebooted and i've got signal but nothing seems any better. The only difference, which i'm hoping has been the issue all along, is that now under Settings>More>Cellular Networks>Preferred Network Type I'm able to select CDMA and have it maintain signal. Before, whenever I clicked that I would lose all data signal and it wouldn't come back. Gsm sort of worked but cdma would never work, it does now.
I can't really test it right now since I have crap signal at my house either way, but does this sound like I've solved something or is this just the placebo effect?

Well, that made it waaaay worse. A lot of new gps issues now....

Related

Modem file needed

Can any one provide the stock Single Sim modem file.I need to enable single sim in Dual sim
I have European xt1562
https://www.dropbox.com/s/zv8k5zqj2yo3qhw/modem.bin?dl=0
sjaakd said:
I have European xt1562
https://www.dropbox.com/s/zv8k5zqj2yo3qhw/modem.bin?dl=0
Click to expand...
Click to collapse
Is ur model single sim
anadarco7 said:
Is ur model single sim
Click to expand...
Click to collapse
Yes it is
sjaakd said:
Yes it is
Click to expand...
Click to collapse
Thanks
Make sure to backup and then erase the two modem data partitions as well. You can find the fastboot commands in the XML of the firmware packages.
Without behaviour might be not what you are looking for...
I worked for me thanks
Modem file for dual sim
Can anyone please share modem file for dual sim model as I've accidentally selected radio band as USA and hence won't get the network in sim slot 1. Also, if possible, please share link to a step by step tutorial as I'm a novice. Also plz tell me if flashing is possible without using a pc and will the warranty of the phone get void. A prompt response will be highly appreciated.
Thanks
I think Flashify can flash without an external device BUT having the OS (Android) running with all the options for locks and alarms would scare me.
I do _think_ that flashing original Motorola signed binaries will not void anything, to be more precise: With a locked bootloader such procedure should be impossible.
Before you flash a baseband (modem; for which we'd need your current version - see "my phone"), I would recommend just erasing modem setttings. I suspect this is where the modem config is permanently stored so erasing it should set this to default.
fastboot erase modemst1
fastboot erase modemst2
I would assume that after you boot, your device crashes once - so it does for me after flashing the modem. Happens when I make the first call. So just try calling your mailbox or something.
Again, I can't and I won't gurantee anything. You warranty is void!
Here's the version of baseband my phone has got.
tinypic.com/r/2ntb49c/9
I strongly suggest you try the fix above before going after this. This reflashes your modem which might be unnecessary.
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
The modem files are in the download, the ones you are looking for are in:
X_Play_France_Retail_XT1562_LPD23.118-10_CFC.xml.zip
See:
http://forum.xda-developers.com/moto-x-play/general/official-stock-firmwares-added-xt1562-t3195364
http://www.filefactory.com/file/e92ibmowiq5/X_Play_France_Retail_XT1562_LPD23.118-10_CFC.xml.zip
Thanks a lot, erasing the modems did it for me.
Many thanks mate.
Great. You can hit the "Thanks" button if you appreciate it.
I could fix my phone by erasing modems, after doing that I performed a factory reset, but now I've another problem. Installing apk files takes longer time than it would take earlier, does it have to do anything with the problem I was facing earlier?
That does not make sense - it just takes longer on the Moto X; I've experienced the same...
But it was pretty fast before doing the reset, I tried further resets, both hardware as well as software, but to no avail. The installation process is very slow, it took Facebook app atleast 5 minutes to install from apk file. Even installs from market take time and it's annoying.
See my other thread just posted. Assume this is because installs need to be converted from Dalvik to ART.
I know it was a lot faster under e.g. 4.4.2. But you sure it was also for any device with 5+?
I used this device for 2 days before messing up with radio band, i didn't face this problem during those 2 days and i used a Moto g3 for three months, didn't face this problem with that either. And it's dead slow, like currently my fb app is updating in background, it already has taken 12 minutes and is asking for another 3 minutes for a 45mb update.
I guess getting this phone replaced is the safest bet for me, as i have witnessed one more problem. When i keep the phone aside and pick it up after some time i see some strange coloured vertical lines on display at the right with rest of the screen being black. It gets right only when i lock and unlock the screen with power key. Any idea what it could be?
Hardware issue?! I would try and see what happens when you reflash it to full factory but that's of course only what I would do.

No network connection after flashing ROMs/restoring backup.

I've been trying different roms since I got the phone shortly after release. I'd been on Orion for a few days and cell service was fine. Today I flashed PureNexus from the AICP thread and could never get it to connect. So, I restored my Orion backup which worked fine. A little while later, I flashed Brokenos. It worked but I didn't like it so I tried PureNexus again and still couldn't get a cell/data connection (wifi works). So, I restored the same Orion backup as before but now I can't get a cell connection (wifi still works).
I've gone though and verified and checked/tried most of the preferred connection types and APNs but nothing has worked.
Not really sure where to go from here.
Thanks
dclutter1 said:
I've been trying different roms since I got the phone shortly after release. I'd been on Orion for a few days and cell service was fine. Today I flashed PureNexus from the AICP thread and could never get it to connect. So, I restored my Orion backup which worked fine. A little while later, I flashed Brokenos. It worked but I didn't like it so I tried PureNexus again and still couldn't get a cell/data connection (wifi works). So, I restored the same Orion backup as before but now I can't get a cell connection (wifi still works).
I've gone though and verified and checked/tried most of the preferred connection types and APNs but nothing has worked.
Not really sure where to go from here.
Thanks
Click to expand...
Click to collapse
fastboot erase modemst1
fastboot erase modemst2
fastboot flash modem NON-HLOS.bin
dclutter1 said:
I've been trying different roms since I got the phone shortly after release. I'd been on Orion for a few days and cell service was fine. Today I flashed PureNexus from the AICP thread and could never get it to connect. So, I restored my Orion backup which worked fine. A little while later, I flashed Brokenos. It worked but I didn't like it so I tried PureNexus again and still couldn't get a cell/data connection (wifi works). So, I restored the same Orion backup as before but now I can't get a cell connection (wifi still works).
I've gone though and verified and checked/tried most of the preferred connection types and APNs but nothing has worked.
Not really sure where to go from here.
Thanks
Click to expand...
Click to collapse
same problem with my XT1575... no Signal / Data / Voice or SMS.
Already flash every rom i found.
every Modem and Kernel.
henques said:
fastboot erase modemst1
fastboot erase modemst2
fastboot flash modem NON-HLOS.bin
Click to expand...
Click to collapse
Thank you! This worked like a charm.
For anyone else; I pulled the modem out of a stock rom linked in one of the rollup threads.
dclutter1 said:
Thank you! This worked like a charm.
For anyone else; I pulled the modem out of a stock rom linked in one of the rollup threads.
Click to expand...
Click to collapse
I'm happy to help. I also had this same problem.
henques said:
I'm happy to help. I also had this same problem.
Click to expand...
Click to collapse
HELP. Same problem, but this solution does not seem to work. I've gone through these steps a number of times, and it appears successful, but nothing changes when I reboot. Am I using the wrong source file somehow?
chandersman said:
HELP. Same problem, but this solution does not seem to work. I've gone through these steps a number of times, and it appears successful, but nothing changes when I reboot. Am I using the wrong source file somehow?
Click to expand...
Click to collapse
I have got the same proble, flashing the three strings told above it hasn't worked. Have you found a solution?
marcopisto said:
I have got the same proble, flashing the three strings told above it hasn't worked. Have you found a solution?
Click to expand...
Click to collapse
More info: xt15??, N/MM/stock/custom/dual/single sim country etc.?
Gsm/wifi/bt/nfc - nothing works?
No signal ?/ no connect? Imei OK?
BL unlocked?

Tried to Flash stock, now no wifi or Sim

The ROM I was using wasn't working so I decided to flash stock to my phone again. Now when it boots it has no wifi and doesn't recognise the (single sim model) Sim Card.
It also reboots periodically.
I can't find a fix for this, but I think it might be because I flashed the Europe Stock while my phone is from Vodafone australia.
Restore your nandroid backup or flash appropriate firmware for your region.
bablu048 said:
Restore your nandroid backup or flash appropriate firmware for your region.
Click to expand...
Click to collapse
What region would the Australian Vodafone version be?
I don't know that..Try Asian firmware..if nothing works restore nandroid backup you'll find those here on other threads.
Flashed the latest EU stock I could find and it does boot. About 80% of the time it boots it doesn't connect to wifi or mobile and reboots. Looked at it in log cat and can't find anything I think could cause it to not work.
When it does work there is no mobile data even though I set up the APN as Vodafone instructed on Vodafone's site
Was looking around in logcat looking for why 3g isn't working found this
06-21 18:39:59.745 2299 2299 I ModemStats: [ModemStatsService] startDataStall, type=PDN Establishment Failure, cause=unspecified
Click to expand...
Click to collapse
Reset it and and booted with no wifi, ran logcat and towards the end got this chunk.
Have rebooted about 20 times and gotten no boots with wifi or sim
Found out the australian version is the EU firmware from the Vodafone website
When you flashing the stock firmware are you flashing the modems and radios correctly?
Try this thread
http://forum.xda-developers.com/moto-x-play/general/how-to-flash-stock-marshmallow-firmware-t3277657
I'm fairly sure that I'm flashing the modems and radios correctly, but I will reflash using this guide anyway.
Is there a way to flash those two without reseting the phone?
Okay reflashed the phone using the commands from the Forum post. In the select wifi network menu it has no wifi and MAC 02:00:00:00:00:00 and occasinonally says "Turning Wi-Fi on..." with nothing much happening
Okay got it past the start scren and basically got it back to square one with still no 3g and it only boots with Wifi and Sim one 3rd of the time
Tried just flashing the Modem with
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase customize
fastboot erase clogo
fastboot reboot
Click to expand...
Click to collapse
Still no 3g and it only boots with WiFi and Sim sometimes
Ataru_ said:
Tried just flashing the Modem with
Still no 3g and it only boots with WiFi and Sim sometimes
Click to expand...
Click to collapse
Try flashing a different rom CM perhaps and see if data works.
bablu048 said:
Try flashing a different rom CM perhaps and see if data works.
Click to expand...
Click to collapse
Whats a CM version with a good work rate with XT1562 moto x, I tried 12 and 13 and they seemed to either crash often or have no wifi/sim
Ataru_ said:
Whats a CM version with a good work rate with XT1562 moto x, I tried 12 and 13 and they seemed to either crash often or have no wifi/sim
Click to expand...
Click to collapse
Cm13 is stable now. I haven't used it..try Cm13 or resurrection remix.
Installed CM-13, wifi works but no Sim is detected (My Phone is Single Sim btw)
Okay in CM13 Sim started working but no 3g

XT1687 3G only on VZW and phone ICCID unknown

Hi all,
I picked up a used G5 Plus (XT1687) on eBay, with the bootloader already unlocked. I immediately installed AICP ROM with a VZW SIM from a working G4. The phone showed LTE for data, but no voice service. That started a long series of firmware changes that saw me trying Pixel Experience, and a few stock ROMs, having my IMEI show as 0 a few times as well.
I'm at a point with the phone now where I'm on the latest retus channel stock ROM (POTTER_NPNS25.137-93-4_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip) with the bootloader locked. The phone now connects with 1xRTT for voice and EvDo (3G) for data. If I swap this SIM into my other phone (Pixel XL) I get full LTE in the Pixel but still 3G only in the G5+.
The only other standout item is in the BP tools SIM menu, where I get the following errors.
Phone ICCID Compare with SIM ICCID: ERROR
and
PHONE ICCID: PHONE_ICCID_UNKNOWN
I feel like with all the flashes I may have really screwed things up. does anyone have any recommendations on what to try to get LTE service back?
TIA!
I am in the exact same boat. Searching around the web, there are several reports of this model phone not switching properly, from EvDo revA to LTE channels. Many of these are from non bootloader unlocked phones, and Verizon {and other carriers} pass it off to Lenovo and vice versa. I unlocked mine myself, but being an Ebay phone and knowingly unlocking it, I realize their is no recourse, except hoping for a proper modem software fix from moto. I've been able to get LTE/4g working a couple times, but it doesn't last, so it is a 3g phone for now.
[email protected] said:
I am in the exact same boat. Searching around the web, there are several reports of this model phone not switching properly, from EvDo revA to LTE channels. Many of these are from non bootloader unlocked phones, and Verizon {and other carriers} pass it off to Lenovo and vice versa. I unlocked mine myself, but being an Ebay phone and knowingly unlocking it, I realize their is no recourse, except hoping for a proper modem software fix from moto. I've been able to get LTE/4g working a couple times, but it doesn't last, so it is a 3g phone for now.
Click to expand...
Click to collapse
glad I'm not alone here. I'm surprised to hear it happens to phones that have never been unlocked and Moto isn't forthcoming with a fix.
Sent from my Pixel XL using Tapatalk
bra1niac said:
glad I'm not alone here. I'm surprised to hear it happens to phones that have never been unlocked and Moto isn't forthcoming with a fix.
Sent from my Pixel XL using Tapatalk
Click to expand...
Click to collapse
It seems they would rather replace than fix.
Same with my phone. It has been unlocked and I've been on numerous variations of ROMs stock and custom. Everything was smooth with no issues until I decided to flash an Oreo 8.1 ROM. Immediately after I was greeted with 3G EVDO-Rev A./1xRTT mode with no access to 4G/LTE on Verizon. Sim Card status is screwy with some apps seeing it, albeit improperly configured, most not able to detect it at all. If I return to any ROM below 8.1 I have no data service whatsoever. Hoping a fix is found as all the workarounds do nothing.
Also like the OP, I can get LTE to stick sometimes by messing around with Radio Bands and switching options around in the 4636 menu. But that leaves me without voice/text/mms service.
[email protected] said:
It seems they would rather replace than fix.
Click to expand...
Click to collapse
sad but true
Sent from my Pixel XL using Tapatalk
I came from a Droid Turbo [quark] and have always liked the motorola phones, in my remote area, for the superior radio reception. My Galaxy S4 dropped calls and data in many of the remote areas, so the Turbo was a welcome upgrade. However, even the with the Turbo, there were Roms that we had to clean and flash updated modems for, when they became balky. I wonder if someone with more engineering knowledge than I have, could look at these twrp flashable modem files, and convert to these G5 plus modems.
[email protected] said:
I came from a Droid Turbo [quark] and have always liked the motorola phones, in my remote area, for the superior radio reception. My Galaxy S4 dropped calls and data in many of the remote areas, so the Turbo was a welcome upgrade. However, even the with the Turbo, there were Roms that we had to clean and flash updated modems for, when they became balky. I wonder if someone with more engineering knowledge than I have, could look at these twrp flashable modem files, and convert to these G5 plus modems.
Click to expand...
Click to collapse
Yeah it seems like there should be some way to un**** the phones after flashing an 8.1 ROM. I just don't know enough about the innards of the ROMs either. I had to follow the instructions here https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808 in order to fix an issue with the phone showing an IMEI of 0. There you end up deleting modemst1 and modemst2. I guess they get replaced by the stock or custom ROM, but I have no idea where you would get copies of those from a ROM that would fix this issue, if such a thing exists.
bra1niac said:
Yeah it seems like there should be some way to un**** the phones after flashing an 8.1 ROM. I just don't know enough about the innards of the ROMs either. I had to follow the instructions here https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808 in order to fix an issue with the phone showing an IMEI of 0. There you end up deleting modemst1 and modemst2. I guess they get replaced by the stock or custom ROM, but I have no idea where you would get copies of those from a ROM that would fix this issue, if such a thing exists.
Click to expand...
Click to collapse
Flashing the modem bin. "NON-HLOS.bin" then erasing modemst1 & 2 gets the 4g/lTE back for some, but has never worked for me. The quark modem we installed the "clean modem" zip which according to the read-me
this zip will "erase" format the modem status partition:
mdm1m9kefs1 = modemst1
mdm1m9kefs2 = modemst2
Click to expand...
Click to collapse
Then flash the modem according to rev of the rom, which included META-INF file folder, boot.img, emmc_appsboot.mbm, fsg.mbn, gpt.bin, logo.bin, modem.img, rpm.img, sbl1.mbn, sdi.mbm, and tz.mbn files.
[email protected] said:
Flashing the modem bin. "NON-HLOS.bin" then erasing modemst1 & 2 gets the 4g/lTE back for some, but has never worked for me. The quark modem we installed the "clean modem" zip which according to the read-me Then flash the modem according to rev of the rom, which included META-INF file folder, boot.img, emmc_appsboot.mbm, fsg.mbn, gpt.bin, logo.bin, modem.img, rpm.img, sbl1.mbn, sdi.mbm, and tz.mbn files.
Click to expand...
Click to collapse
Hm so you're saying to do this:
Flash NON-HLOS.bin from the stock ROM zip
erase modemst1
erase modemst2
reboot
And that might restore LTE? I've never just flashed that bin and erased.
In the info file in the stock ROM I'm using, it shows modem version M8953_37.46.07.47R. In the ROM zip I have
boot.img
fsg.mgn
gpt.bin
logo.bin
missing from the list are
emmc_appsboot.mbm
modem.img
rpm.img
sbl1.mbn
sdi.mbm
tz.mbn
I wonder if the stock ROMs from OTA only include the files that changed, so an older stock ROM might have one or more of those missing files. Or those files just don't apply to the G5+ but do to the Quark.
I'll try downloading a bunch of the older stock ROMs and unpacking them and seeing if any of them contain files that aren't included in the one I've been using.
I've also been ignoring this, but I believe these two steps in the stock ROM reflash have always failed for me:
fastboot erase customize
fastboot erase clogo
I'm not sure what they do so I'll have to dig into that.
It is weird that out of the blue I flashed a 8.1 rom,,,after flashing different 8.1 roms before that,,,I lost VZM service all together. Was able to get back 4G data service only, no voice service. However, after a few mins voice service comes back. Never happened the numerous times I flashed 8.1 before so wonder why it happens all the time now? Makes me think there is a design flaw with the internal radio,,,not the modems software? Would really be nice to see an 8.1 update from Moto,,,may help solve these problems.
Archangel said:
It is weird that out of the blue I flashed a 8.1 rom,,,after flashing different 8.1 roms before that,,,I lost VZM service all together. Was able to get back 4G data service only, no voice service. However, after a few mins voice service comes back. Never happened the numerous times I flashed 8.1 before so wonder why it happens all the time now? Makes me think there is a design flaw with the internal radio,,,not the modems software? Would really be nice to see an 8.1 update from Moto,,,may help solve these problems.
Click to expand...
Click to collapse
yeah a factory Oreo ROM would probably help straighten a bunch of things out.
Sent from my Pixel XL using Tapatalk
bra1niac said:
Hm so you're saying to do this:
Flash NON-HLOS.bin from the stock ROM zip
erase modemst1
erase modemst2
reboot
And that might restore LTE? I've never just flashed that bin and erased.
In the info file in the stock ROM I'm using, it shows modem version M8953_37.46.07.47R. In the ROM zip I have
boot.img
fsg.mgn
gpt.bin
logo.bin
missing from the list are
emmc_appsboot.mbm
modem.img
rpm.img
sbl1.mbn
sdi.mbm
tz.mbn
I wonder if the stock ROMs from OTA only include the files that changed, so an older stock ROM might have one or more of those missing files. Or those files just don't apply to the G5+ but do to the Quark.
I'll try downloading a bunch of the older stock ROMs and unpacking them and seeing if any of them contain files that aren't included in the one I've been using.
I've also been ignoring this, but I believe these two steps in the stock ROM reflash have always failed for me:
fastboot erase customize
fastboot erase clogo
I'm not sure what they do so I'll have to dig into that.
Click to expand...
Click to collapse
I think those errors are normal, at least with some stock roms.
Those extra files were from the quark modem files, which is an older modem/radio, so the drivers are going to be different. By the way, I have flashed the modem, flashed the erase modemst1 & 2 and every combo, yet no luv.
This problem can be attributed to one of 2 things. First would be hardware, but by selecting LTE only in the testing menu, I was able to get data in LTE. So the radio's frequency band that supports LTE from Verizon in these phones does work. The Motorola Moto G5 Plus TD-LTE 32GB XT1687 which I have, supports 4 GSM bands, 5 UMTS bands, 15 LTE bands, and 3 CDMA bands. My carrier Verizon uses 3 LTE bands and 2 CDMA bands. The way I understand how it works, is by default, all 4g/LTE capable phones look for a signal in the bands, approved by your sim, in the LTE range first. If not found, it switches to 3g or CDMA , and if that isn't found, 2g. If we are correct in assuming the radio's ability to receive the 3 LTE bands is still functional, it stands to reason the driver that auto switches to CDMA is corrupt. I lost my 4g/LTE on the Pixel Rom, and not by reverting back to stock. It was the only Rom I had ever flashed on the phone after unlocking and installing twrp recovery. I have since gone back to stock and relocked the bootloader, hoping the next ota will jog the drivers to look for LTE before passing off. The times I have briefly had 4g kind of reinforces the theory that the drivers that pass off to 3g are corrupt.
A little research into the baseband processor and its radio firmware RTOS [real-time operating system,] shows it to be closed source, proprietary, yet full of flaws. It is even susceptible to the long standing "Hayes command set" but I don't believe this to be where our particular problem lies. Because it is so closed, it is doubtful the Oreo roms were able to inadvertently touch anything inside this secondary operating system all phones have. It is more likely it is the communication between our android firmware, and the radio firmware, but why the restoration back to stock, doesn't remedy it, is a mystery. The devs that adapted the Oreo roms to this device, missed this link or they would not have written to that area, I'm sure.
You guys are a lot smarter than me,,,it just scared the heck out of me. I flashed a 8.1 rom like I have done at least a dozen or so times on this phone and then suddenly no signal at all,,,then just 4g data and no voice service. I went back to a 8.1 back up that I have and within a few mins everything came back. Now, I am afraid to flash anything rom wise for fear of not getting any signal back.
Something like this really deserves an official statement by Lenovo, Motorola or Verizon. Even if that statement is an unfortunate "you knew the risks associated with unlocking the bootloader and flashing ROMs / modems". Even if none of the three know what exactly is going on they should at least let us know.
Is this problem something that happens with all carriers and their LTE signals? Am I right in thinking that using Verizon is currently the only carrier in which the issue can't be fully repaired?
I havent yet restored my partially working (3g/1x) EFS backup to a stock Nougat Rom yet as I want to have 4G working as well if I do that. If the other carriers can be fully repaired I'll just switch carriers until I get a new phone.
There have been some reports around that putting in a GSM sim even temporarily brings back LTE. I haven't had access to one to try.
[email protected] said:
I think those errors are normal, at least with some stock roms.
Those extra files were from the quark modem files, which is an older modem/radio, so the drivers are going to be different. By the way, I have flashed the modem, flashed the erase modemst1 & 2 and every combo, yet no luv.
This problem can be attributed to one of 2 things. First would be hardware, but by selecting LTE only in the testing menu, I was able to get data in LTE. So the radio's frequency band that supports LTE from Verizon in these phones does work. The Motorola Moto G5 Plus TD-LTE 32GB XT1687 which I have, supports 4 GSM bands, 5 UMTS bands, 15 LTE bands, and 3 CDMA bands. My carrier Verizon uses 3 LTE bands and 2 CDMA bands. The way I understand how it works, is by default, all 4g/LTE capable phones look for a signal in the bands, approved by your sim, in the LTE range first. If not found, it switches to 3g or CDMA , and if that isn't found, 2g. If we are correct in assuming the radio's ability to receive the 3 LTE bands is still functional, it stands to reason the driver that auto switches to CDMA is corrupt. I lost my 4g/LTE on the Pixel Rom, and not by reverting back to stock. It was the only Rom I had ever flashed on the phone after unlocking and installing twrp recovery. I have since gone back to stock and relocked the bootloader, hoping the next ota will jog the drivers to look for LTE before passing off. The times I have briefly had 4g kind of reinforces the theory that the drivers that pass off to 3g are corrupt.
Click to expand...
Click to collapse
Yeah that all seems to make sense. Something we broke with a software change should be fixable with a software change. Hopefully the next OTA isn't too far away.
[email protected] said:
There have been some reports around that putting in a GSM sim even temporarily brings back LTE. I haven't had access to one to try.
Click to expand...
Click to collapse
That's interesting. My wife is on T-Mobile and was using a Moto G4, now a Pixel. I'll have to snag her SIM for a few minutes to see what happens later this afternoon. I'll report back. :good:
bra1niac said:
That's interesting. My wife is on T-Mobile and was using a Moto G4, now a Pixel. I'll have to snag her SIM for a few minutes to see what happens later this afternoon. I'll report back. :good:
Click to expand...
Click to collapse
It might pay to remove your sim, flash the
Code:
fastboot erase modemst1 fastboot erase modemst2
and then insert her sim. I'm just thinking that would clear the modem for the new bands to set themselves.

Bunch of XT1962-1 questions / Can MVNOs see if you are rooted?

So I have a ton of questions, and maybe some answers for someone having similar issues. I *have* RTFMs, but I am not positive things are still the same in the real world. Maybe they are, and I am just doing something wrong. I have been a paint by numbers copy/paste Android person for years, and I work with unix (mostly AIX7 these days) in the real world, so I have some familiarity with technology and unix in general, but Linux and Android are very different animals. I am not a complete clown, but it is probably safest to treat me as one when it comes to Android phones, and the Motorola ecosystem is pretty much brand new to me.
I have a rooted, unlocked bootloader Moto G7, a XT1962-1. The file I happen to be flashing to recover is named: river-user 9 PPO29.114-134 fee207 release-keysM632_26.100.01.120.01R. I am using RSDLite 6.2.4 to flash it.
I have Total Wireless, and after uninstalling/reinstalling Magisk, I cannot keep a cell signal. I tried a trial SIM from Mint Mobile, and it also would not work. The Total Wireless SIM, which I had been using without issue for months, keeps getting a full, strong signal, then completely dropping to zero, in cycles that last about 10 seconds. Connect, great signal, nothing, great signal, nothing etc. I am stationary in a location that ordinarily has excellent service, so this isn't a signal issue. The indicator shows SIM Locked/No Signal/5 bars back and forth, in those ~10 second intervals. Very f'ing frustrating, to say the least. Total Wireless support is a joke, they couldn't help at all. (I spoke to someone for literally several hours, he eventually tansferred me to a supervisor. I had told the first guy "My signal is FLUCTUATING" - when the "supervisor" got on the line, she said "I understand your signal has been FLATULATING" - Correcting her English would have been like telling Costello that "Who" isn't a proper noun, so my gassy phone and I let it...go). They told me my SIM was bad, so I ordered another and it just flat out wouldn't activate at all. The Mint Mobile SIM just wouldn't get a signal at all, and when I called their (terrible) support, they told me the phone was locked (it isn't). So I restored the phone to full stock, relocked the bootloader and tried again, and both SIMs work fine, perfect signal. As soon as I start flashing or tinkering with anything, the cell signal starts going up and down again. I have found that a fresh flash from RSDLite will get the SIM to connect and behave properly, relocking the phone bootloader is not necessary.
What I have been doing is flash fresh with RSDLite, then push TWRP to RAM Recovery and installing, then boot and patch a boot.img with Magisk Manager, then fastboot install that image to install Magisk and get root. Sometimes this works, sometimes it bootloops.
So I have been tinkering for the past week trying to get this phone back up and running properly with root, and trying to track down exactly what breaks it. So this brings me to a short list of questions that would really, really help a lot if anyone knows the answers and would be willing to take a moment to post. In no particular order:
Can MVNOs detect root or unlocked bootloader? If so, is there a way to hide? I have tried many different ways, so far to no avail, after I start modding, I lose cellular. What apps should be hidden to avoid this?
When you do a TWRP Restore from a backup, what boxes do you check (What partitions do you recover)? When I restore an old TWRP backup, I hit a bootloop every time. Multiple backups do this.
What is the best way to install Magisk? Do you still patch a boot.img from within Magisk Manager? Can the patched boot.img be installed using Install Image from within TWRP?
I did a SHA512 of the magisk_patched.img file between two different installs, and it is different. Unless I screwed up and used 19.3 instead of 19.4, it should be the same, unless there is a random number involved in each installation. Is there?
What is the newest version of TWRP for river? I am running twrp-3.3.1-0-river.img. I *assume* this is the newest for river, but ASSume, right?
Thanks for any thoughts or guidance, I am kinda at wit's end. If this were my only phone, I'd be hosed. It is, however, my current favorite, and I'd love to get it chugging along again.
Ah, firstly, I was applying an old firmware. XT1962-1_RIVER_RETUS_9.0_PPOS29.114-134-2_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml is the August update. That doesn't fix my problem, but it helps...
SmilingPerson said:
<<snipped>>
I have Total Wireless, and after uninstalling/reinstalling Magisk, I cannot keep a cell signal. I tried a trial SIM from Mint Mobile, and it also would not work. The Total Wireless SIM, which I had been using without issue for months, keeps getting a full, strong signal, then completely dropping to zero, in cycles that last about 10 seconds. Connect, great signal, nothing, great signal, nothing etc. I am stationary in a location that ordinarily has excellent service, so this isn't a signal issue. The indicator shows SIM Locked/No Signal/5 bars back and forth, in those ~10 second intervals. Very f'ing frustrating, to say the least.
Click to expand...
Click to collapse
I have had the cellular signal fluctuation problem several times. The error messages are very deceiving and point to a bad SIM card. I had the signal fluctuation problem a few days ago. My device is a XT1962-1 (river) running PPOS29.114-134-2, my service provider is Google Fi. My device is bootloader unlocked and rooted with Magisk. TWRP is installed.
If you look at the fastboot commands in the flashfile.xml file included with Motorola ROM you will see two commands to erase the modemst1 and modemst2 partitions.
fastboot erase modemst1
fastboot erase modemst2
I booted my device to bootloader mode, connected with USB to my PC and in a command prompt window I executed these two commands. I rebooted my device and my cellular signal was strong and stable.
You can google "fastboot erase modemst1" and find many references to the exact issues you are having. I have not been able to determine why my device does this, but I now know the steps to fix it.
Good luck.
cou94114 said:
I have had the cellular signal fluctuation problem several times. The error messages are very deceiving and point to a bad SIM card. I had the signal fluctuation problem a few days ago. My device is a XT1962-1 (river) running PPOS29.114-134-2, my service provider is Google Fi. My device is bootloader unlocked and rooted with Magisk. TWRP is installed.
If you look at the fastboot commands in the flashfile.xml file included with Motorola ROM you will see two commands to erase the modemst1 and modemst2 partitions.
fastboot erase modemst1
fastboot erase modemst2
I booted my device to bootloader mode, connected with USB to my PC and in a command prompt window I executed these two commands. I rebooted my device and my cellular signal was strong and stable.
You can google "fastboot erase modemst1" and find many references to the exact issues you are having. I have not been able to determine why my device does this, but I now know the steps to fix it.
Good luck.
Click to expand...
Click to collapse
Thank you so much for responding, I will try that. I have been trying every different combination of things, rooting and installing TWRP in different ways and different orders, and with different versions - so many permutations. I was almost at the point of noting what compass point I was facing while flashing things, wearing different colored shirts, and maybe pressing the Enter key with my left hand instead of right.
I do have it working now, but as soon as it reboots, it will likely go back to fluctuating. At that point the first thing I will try is "fastboot erase modemst1".
There are some posts about people booting BP Tools mode and fixing this issue, but that didn't work for me. There were apparently some changes made in response to CVE-2016-10277 that may have broken that fix with Broadband Processing mode (I *think* that is what BP stands for...)
Anyway thanks mate, i am grateful, and will post what happens. The Location spoof Search option in xPrivacylua Pro breaks sometimes and requires a reboot to fix, and mine just did that, so a reboot is in the near future.
cou94114 said:
I have had the cellular signal fluctuation problem several times. The error messages are very deceiving and point to a bad SIM card. I had the signal fluctuation problem a few days ago. My device is a XT1962-1 (river) running PPOS29.114-134-2, my service provider is Google Fi. My device is bootloader unlocked and rooted with Magisk. TWRP is installed.
If you look at the fastboot commands in the flashfile.xml file included with Motorola ROM you will see two commands to erase the modemst1 and modemst2 partitions.
fastboot erase modemst1
fastboot erase modemst2
I booted my device to bootloader mode, connected with USB to my PC and in a command prompt window I executed these two commands. I rebooted my device and my cellular signal was strong and stable.
You can google "fastboot erase modemst1" and find many references to the exact issues you are having. I have not been able to determine why my device does this, but I now know the steps to fix it.
Good luck.
Click to expand...
Click to collapse
For posterity, I wanted to follow up that this worked! Thank you again, this is just awesome!!
The Mobile Data button actually still says No Internet like it has since this issue began, but I have a steady four bars, and everything works perfectly, so the indicator is just wrong.
This is why I love XDA - people like you who take a moment out of your day to share your knowledge with those of us who bit off more than we could chew. Thanks again mate!

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