Database Users

Signal problem

Hi guys, i am new to android phones and i have a i9000 but i have 2 problems. First, although my signal appears to be full ( 3-4 bars ), sometimes i can't hear another person on the phone, or that person can't hear me...it's like i'm having bad reception. The second problem is that sometimes when somebody calls me, the phone doesn't ring and doesn't turn up...nothing happens, i don't even know that i was called.
Firmware version 2.3.4
Baseband XXJVR
Kernel 2.6.35.7-I9000-CL425308
Thanks.

anyone?

Is the phone still stock, and under warrenty?
If so take it back for repair

No, it's not stock, but i belive i have a backup somewhere... if i can't send it to warranty what should i do?

nobody?

alkorr said:
No, it's not stock, but i belive i have a backup somewhere... if i can't send it to warranty what should i do?
Click to expand...
Click to collapse
If you don't have a backup, flash a stock rom with Odin.
Already tried different modems?

No, i didn't try any modems, that's why i've asked you guys, which modem should i try to improve the signal but also to have good battery life. Thanks

alkorr said:
No, i didn't try any modems, that's why i've asked you guys, which modem should i try to improve the signal but also to have good battery life. Thanks
Click to expand...
Click to collapse
You have to try cause a modem that works for me maybe is not good for you. Good luck

Ok. Here is another question: if i put a different modem, will affect it the battery life? Or the battery life is connected to the kernel version?

From what I understand, changing modems does affect battery life in terms of searching for signal. As people stated earlier, you're going to have to try different modems to find the one that provides you with both the best signal and the best battery drain. If you live in a country where many people use the SGS and you use a popular carrier, it is possible for you to determine which modem is most likely going to work out well for you. Just run a search with your carrier, model number, etc.

Are the compatibility issues between modems and kernels? Can i try any modem with my kernel?

someone?

Firstly you need to eliminate, if its a carrier issue or phone. you can try a different sim card. or try your sim in another phone...
Also what is your signal in -Db (you can see this in phone status).
Another thing you appear to be on a very old ROM, try flashing to the latest official Samsung Rom.
if all this fails then it looks like hardware issue. You could try using headphones to eliminate if the speaker and mic issue.
just think logically...I'm sure it can be fixed.

Ok...first, it's not a carrier issue because my girlfried is using the same carrier and has no problems. Second the signal strength is "-75 dBm 19 asu", but like I said, the signal appears to be full when the phone conversation is stating to have problems and I'm not walking when I'm on the phone ( the signal can not be lost by changing the place from where the phone is used )...I have 3 or 4 bars all the time...so I don't think it's a hardware problem because if it were I shouldn't be able to have good signal at all, but I do. That problem doesn't always appear.
I know that I should change the modem but I don't want to decrease the battery life. So, my questions are:
1. If I change the modem will the battery life be affected? If yes, what is the best modem for battery lifetime? If no, it is deppending on kernel:
2. Are there compatibility issues between modems and kernels?
Thanks!

the modem changes depending on the area where you are and the operators.
In italy i use i9000xxjvu and this modem work very well and consumes very little battery

Yes different modem firmware will affect the battery performance.. some are better than others..... why don't you take a nandroid backup of your current rom...and test a complete new rom with latest modem firmware..just install a stock official latest rom for test purpose. If it still bad , you can easily restore from the backup But I think if your signal - 75 DB (which is like excellent) and your having problems hearing ' speaking ... then it looks like speaker ,mic.. use your supplied headphone to answer calls..as another test , to see how it responds

if you hve stock non rooted firmwre from your carrier or for your country it is plain stupid to play with modems. samsung knows how to fit proper modem for particular region.
parameters you presented also indicates that there is nothing wrong with modem<->bts communication, signal is more than decent.
this might be a problem with some application or some previously installed application that messed up with phone.
i would advise:
- backup of any data you will need
- backup of apps
- MAKE FACTORY RESET from recovery menu or via dialpad code
- retore APP ONLY and USER APP NOT SYSTEM APP
- do not restore app data, or retore app data one by one checking if that affects your phone
if that wont hellp, youre clear to send your phone to samsung repair center

Help needed identifying a problem with my network

Hello,
Im having a most frustrating problem. Im not sure if its a modem issue or a hardware issue. What I am experiencing is this:
The phone shows no bars, but sees a carrier. This happened after flashing back to a stock GB rom after using a CM9 rom. I can receive texts and calls sometimes, but its not consistant. If it shows no bars I can get a call, if it shows one or two bars i cant, but get the missed call notification. I have done factory resets, cache clears. Its really making my phone unusable. I went back to using my 3 yr old Ericsson till I can get this figured out. Im hoping that someone has some advice for me as Im out of ideas. Ive tried to flash just the modem but no luck. Went from CyanTablet to xxjvt 2.3.5, rooted it so I could get the modded recovery. The pins for the where the sim card make contact are damaged but it has worked for the last 2 months that way. I really love this phone and dont want to replace it yet.

rivman05 said:
I really love this phone and dont want to replace it yet.
Click to expand...
Click to collapse
test with a network booster to increase signal strength, free from google but if you bring phone to another location, do you get a better signal? meaning location matters, if you far from your network cell site, its more difficult

Ill try the network booster. All of my old phones pick up 5 bars, I live about 1/4 mile from the cell tower. I have tried another flash with 2.3.3, repartitioned this time. Once its back up and running Ill get back to you. Is there anything else Im missing? Well I think its dead. Ive tried all my coworkers sims in it, nothing came up. It says no service permanently now, guess its a 4" tablet.

Try another radio, i had the same problem wit JW4 radio,flashed JVT and problem solved.
Some radios are better than others in different locations, it also depends on rom used.

I tried a completely new build, flashed a new modem, then flashed xxjvu. Still nothing, going to call Samsung and see if I can get the warranty to fix it. 2.3.6 tho has 364 megs of ram and has almost 200 free, thats cool. zsjw4 has a new look to it.

Flashing 03.61 radio on NRD90U

I'm New to the forums here everyone.
Greetings!
I'm running NRD90U but I'm experiencing some issues with the recent radio update that came with nougat on Verizon. I've searched everywhere on the xda forums and found suggestions to others experiencing similar issues (simultaneous voice and data). With the 03.61 radio, everything worked just fine whereas with 03.72 I have to toggle airplane mode after every reboot in order to have simultaneous voice and data. I have performed all of the suggested things to no avail. HD voice is enabled on my line and I've tried taking it off and putting it back on. Enhanced LTE is set to on and I've toggled that. I've factory data reset. I've wiped cache. I've Tested SIM in another Verizon device and it works fine. I've Put another Verizon SIM in my device and still have the issue. I even gotten a new replacement device. I've sideloaded OTAs. I've flashed factory images. I've literally tried everything suggested here.
All said, I'm wondering if it's possible to flash the older 03.61 radio while keeping everything otherwise the same on my phone with stock Nougat-NRD90U.
I would appreciate input.
Thanks.

[email protected] said:
I'm New to the forums here everyone.
Greetings!
I'm running NRD90U but I'm experiencing some issues with the recent radio update that came with nougat on Verizon. I've searched everywhere on the xda forums and found suggestions to others experiencing similar issues (simultaneous voice and data). With the 03.61 radio, everything worked just fine whereas with 03.72 I have to toggle airplane mode after every reboot in order to have simultaneous voice and data. I have performed all of the suggested things to no avail. HD voice is enabled on my line and I've tried taking it off and putting it back on. Enhanced LTE is set to on and I've toggled that. I've factory data reset. I've wiped cache. I've Tested SIM in another Verizon device and it works fine. I've Put another Verizon SIM in my device and still have the issue. I even gotten a new replacement device. I've sideloaded OTAs. I've flashed factory images. I've literally tried everything suggested here.
All said, I'm wondering if it's possible to flash the older 03.61 radio while keeping everything otherwise the same on my phone with stock Nougat-NRD90U.
I would appreciate input.
Thanks.
Click to expand...
Click to collapse
If you are bootloader unlocked, you can fastboot flash any radio.img you want. If you are not bootloader unlocked, no you can't. The radio.img is universal btw, not specific to a carrier.
Edit: the guide below will help you unlock the bootloader and learn fastboot if you are unfamiliar.
http://forum.xda-developers.com/showthread.php?t=3206928
Sent from my Nexus 5X using Tapatalk

Thanks. I will do that. I appreciate the help.

Is this a problem for other Verizon users too? If so, I just won't upgrade the radio firmware on mine either.

I would highly suspect that the problem is for everybody on Verizon especially since I replaced my device and did all this SIM card changes and things. It is very unnoticeable in that the only time you experience it or see it is if you are making a call on the new nougat radio 03.72, you will see the LTE icon disappear as soon as you make your call, regardless of whether you are on an 'HD call' or not. If you are on the older radio 03.61 that is on marshmallow, then you never experience that problem, ever, ever. Everything is perfect with that "radio." I've done a lot of testing on it, as I said, up to replacing my device, all to no avail. unless using 03.61 which is again, perfect. I wouldn't change if you can avoid it. If you do get the nougat radio though (03.72), it's a nuisance because after the majority of reboots overall, you will come up with everything normal-'looking' with the LTE icon there but when trying to make a call it will disappear and you'll have an exclamation point there until you hang up from the call and LTE comes right back. (unless you're on wifi off course in which case none of this apples). The solution if you find yourself with the 03.72 nougat radio with this happening, is to toggle airplane mode and then you're good to go until the next time you have to reboot. I always check afterwards by calling voicemail to make sure the LTE icon stays while on the call. It will disappear immediately.
I'm going to assume there is some sort of an "initial-boot-handshake" that's not taking place correctly, but DOES communicate correctly coming out of airplane mode when the device is already booted.
Regards
Edit: This may be a regional VZW issue and not a phone or baseband issue.

Verizon has had issues where I live for more than a week.
I live in Northern Ca and they just sorted things out.
Funny, I flashed the Nougat radio on top of 6.x to see if my issue was fixed.
It's not the radio. Mine is finally stable. Not sure what VZW did.

tech_head
Everything was working fine on mine with the marshmallow radio. I didn't have an issue until I updated to nougat.
Hearing what happened with yours makes me think that it's a regional Verizon thing. Hopefully they will fix soon. I'm not holding my breath because it's been about a month here in Central Kentucky
I'm glad yours is working now man.
Cheers!

I'm having a similar problem for the last couple days after flashing the latest update. I may try stepping back to the older radio to see if that fixes my problem. I just hope it doesn't affect my bluetooth, as that's finally working fine again.

heffe2001 said:
I'm having a similar problem for the last couple days after flashing the latest update. I may try stepping back to the older radio to see if that fixes my problem. I just hope it doesn't affect my bluetooth, as that's finally working fine again.
Click to expand...
Click to collapse
Best of luck. Let us know how it goes if you get the chance. Thanks!

Holy crap, I thought it was just me! I did the exact same things (minus an RMA) as the OP to fix the issue with no luck, even downgrading to MTC20F and upgrading to MTC20L and finally Nougat, just to make sure something wasn't getting jacked in the flashing process. I spent an hour on the phone last night w/ a tier 2 tech guys from Verizon and the only issue he could see was that my PRL had an update for my SIM which should happen automatically. He pushed it through from their end but it didn't fix the issue. Normally I don't care about browsing/downloading when I'm on the phone since I hate talking on the phone and get off as soon as possible but it causes another problem which is not acceptable: if I am browsing chrome or doing anything with data, incoming calls go straight to voicemail. Tried switching the phone from "global" to "LTE/CDMA" with no luck-a reboot always kills simultaneous voice and data. I can rule out this being a Verizon issue on my end as when I flashed the MM images to update via OTA this morning, all worked perfectly fine.
Edit: I have called multiple people in my area that are on VZW after having them reboot their phones and all of them maintained simultaneous voice and data. I think it is safe to state that this issue is software/device specific.

bjoostema said:
Holy crap, I thought it was just me! I did the exact same things (minus an RMA) as the OP to fix the issue with no luck, even downgrading to MTC20F and upgrading to MTC20L and finally Nougat, just to make sure something wasn't getting jacked in the flashing process. I spent an hour on the phone last night w/ a tier 2 tech guys from Verizon and the only issue he could see was that my PRL had an update for my SIM which should happen automatically. He pushed it through from their end but it didn't fix the issue. Normally I don't care about browsing/downloading when I'm on the phone since I hate talking on the phone and get off as soon as possible but it causes another problem which is not acceptable: if I am browsing chrome or doing anything with data, incoming calls go straight to voicemail. Tried switching the phone from "global" to "LTE/CDMA" with no luck-a reboot always kills simultaneous voice and data. I can rule out this being a Verizon issue on my end as when I flashed the MM images to update via OTA this morning, all worked perfectly fine.
Edit: I have called multiple people in my area that are on VZW after having them reboot their phones and all of them maintained simultaneous voice and data. I think it is safe to state that this issue is software/device specific.
Click to expand...
Click to collapse
I have done and agree with what you said - other devices(non NEXUS 6p) work fine and 6p works fine on marshmallow. However, tech_head posted above that his I'd all good now and that it was a Verizon issue. I'm not sure where you live but based on tech_head's post, I can't rule out VZW as the problem. One thing is for sure it is an issue here in Central Kentucky on the two NEXUS 6ps that I have had and tried EVERYTHING, like you, on both of them to no avail without marshmallow radio. I haven't tried flashing marshmallow radio on top of nougat. I may just wait and see if VZW or Google work something out to fix it soon with a possible update. Not holding my breath but I believe it will eventually get fixed in the future, OFFICIALLY.
Thanks man.
I appreciate your input.

**

As mentioned earlier in the thread, the radio is independent of the OS version, so why not take 1 or 2 minutes and flash an earlier radio? There is a radio / modem repository thread on XDA with all versions you can just grab and try out. Literally takes less than a minute and if you don't like the results, then just flash it right back. I use Fastboot, but TWRP, FF, NRT, etc. all work equally well. You may also post what you find under "Phone Settings" when typing " *#*#4636#*#* " into the dialer. Report back on your findings.

Here are the screenshot links for my phone settings.
Thanks
OP
http://forum.xda-developers.com/attachment.php?attachmentid=3882483&stc=1&d=1474502181
http://forum.xda-developers.com/attachment.php?attachmentid=3882482&stc=1&d=1474502181

tech_head said:
Verizon has had issues where I live for more than a week.
I live in Northern Ca and they just sorted things out.
Funny, I flashed the Nougat radio on top of 6.x to see if my issue was fixed.
It's not the radio. Mine is finally stable. Not sure what VZW did.
Click to expand...
Click to collapse
Are You running stock nougat now. If so, what is your simultaneous voice and data status with respect to my post.
Thanks
OP

[email protected] said:
I have done and agree with what you said - other devices(non NEXUS 6p) work fine and 6p works fine on marshmallow. However, tech_head posted above that his I'd all good now and that it was a Verizon issue. I'm not sure where you live but based on tech_head's post, I can't rule out VZW as the problem. One thing is for sure it is an issue here in Central Kentucky on the two NEXUS 6ps that I have had and tried EVERYTHING, like you, on both of them to no avail without marshmallow radio. I haven't tried flashing marshmallow radio on top of nougat. I may just wait and see if VZW or Google work something out to fix it soon with a possible update. Not holding my breath but I believe it will eventually get fixed in the future, OFFICIALLY.
Thanks man.
I appreciate your input.
Click to expand...
Click to collapse
No problem bud! I haven't flashed another radio yet either. I will report back after I test a few more things.

Has anyone determined the cause of the problem? Was it the radio firmware after all? There seem to be conflicting answers here.

chaoticyeshua said:
Has anyone determined the cause of the problem? Was it the radio firmware after all? There seem to be conflicting answers here.
Click to expand...
Click to collapse
It is still kind of up in the air. What I do know is that there is a software incompatibility somewhere within nougat here in Lexington, KY, at least. I assume it's the radio software but I'm not certain. I'm not bootloader unlocked at this point so I haven't yet tried to flash marshmallow radio on to stock nougat. I will probably try this in a few days when I have the time to deal with the factory reset it involves. Please refer back to the original post for questions about my reasoning.
It's quite interesting, the problem, as everything with stock nougat - voice and data-wise, works just like marshmallow after I toggle airplane mode after reboot. With marshmallow, it just worked. Very weird. But given I can just toggle airplane mode 1 time for every time I boot, it's just a slight nuisance. Once I toggle airplane mode, everything is good just like marshmallow, as if nothing was ever wrong. It could be something about the boot sequence. It's very interesting. I'm open to ideas at this point.
Thanks.

My 2¢
When i was on 6.0.1 didn't have and issue with radio. i flashed the 7.0 radio while still on 6.0.1, still no issues.
Then i flashed 7.0 OS and that's when the issue started and it was only affecting upload speed download was great. Then i flashed the last radio from 6.0.1 and the issue went away.
P.S.
the data going off during a call is VZW. i had to call to have them fix this even before 7.0 they dont like the fact that we are using a non vzw branded cell.
I'm back on 6.0.1, never signed on to be a beta tester for 7.0?. These days its about profit and quantity and the hell with quality
Sent from my Nexus 6P using XDA-Developers mobile app

spjetrovic said:
My 2¢
When i was on 6.0.1 didn't have and issue with radio. i flashed the 7.0 radio while still on 6.0.1, still no issues.
Then i flashed 7.0 OS and that's when the issue started and it was only affecting upload speed download was great. Then i flashed the last radio from 6.0.1 and the issue went away.
P.S.
the data going off during a call is VZW. i had to call to have them fix this even before 7.0 they dont like the fact that we are using a non vzw branded cell.
I'm back on 6.0.1, never signed on to be a beta tester for 7.0?. These days its about profit and quantity and the hell with quality
Sent from my Nexus 6P using XDA-Developers mobile app
Click to expand...
Click to collapse
I appreciate your input. It doesn't sound like our issues are quite the same. I'm not sure though.
What is it that Verizon did for you. That may be the answer to my problems.
Thanks. Best Regsrds.

Intermittent carrier signal drops.

My 6p has worked well for some time, but for a while now it will just constantly drop carrier signal, it seems to do it more when an app is sending or receiving data. I thought maybe it was purenexus or the ex kernel, so I updated both to the current releases, there are no other mods besides root. I've never ran stock on it and the issue just started out of nowhere one day. It will usually pickup signal when it drops. Sometimes to speed it along I'll put it in airplane and then back. Sometimes that doesn't work and a reboot is needed. It's also on the latest vendor image because AFAIK that includes the modem radio. I'm kinda out of ideas, I'd like to avoid dealing with the carrier if I don't need to (t-mobile us)
Also, when on WiFi I noticed that cellular never seems to drop.

Having the same problem. It started recently and I'm not sure why. I'm on Cricket.

gr546jmn5 said:
My 6p has worked well for some time, but for a while now it will just constantly drop carrier signal, it seems to do it more when an app is sending or receiving data. I thought maybe it was purenexus or the ex kernel, so I updated both to the current releases, there are no other mods besides root. I've never ran stock on it and the issue just started out of nowhere one day. It will usually pickup signal when it drops. Sometimes to speed it along I'll put it in airplane and then back. Sometimes that doesn't work and a reboot is needed. It's also on the latest vendor image because AFAIK that includes the modem radio. I'm kinda out of ideas, I'd like to avoid dealing with the carrier if I don't need to (t-mobile us) Also, when on WiFi I noticed that cellular never seems to drop.
Click to expand...
Click to collapse
Several threads on the same dropping, cycling, having to reboot issue affecting T-Mo. Fairly new one here. You can also find a huge whinge fest thread here where every T-Mo user has tried every radio going back a year. If I were affected, I would make sure the issue was present on a bone stock device, then I would find a friend/relative and switch to a different carrier SIM, preferably a non-MVNO to see if it was resolved. It shouldn't take more than a few hours. At that point you're going to know whether it is your carrier or your device. If it is the carrier, provide them this information and ask for new SIM to be provisioned. They should also be able to look up your usage history and maybe find a solution for you. The beauty of owning a carrier unlocked phone is you can always get another carrier. If all this tells you it is a hardware issue, then you have already collected the evidence needed for a warranty claim.

My LG-H918 (T-Mobile variant) updated, and is stuck with "no service/radio off"

Wow, seeing that this is quite the phenomena. It seems everyone has this in some form since that December update
I'll skip the small talk because this issue is widespread enough... here's what HASN'T worked
- *#*#4636#*#* (Trying to use "Phone information" leads me immediately to "this application does not work on this device")
- Taking out SIM and battery for 30min
- Swapping SIM
- Factory Reset
- Praying that anyone at T-Mobile has attained a level higher than "Totally clueless"
- Praying that anyone at LG would provide a working solution
- Dialing ##UPDATE# (Afaik, this only works on Sprint)
- Five hours of googling
As it stands, I'm stuck with a phone that's awesome at doing everything but being a phone. Apparently I can flash a radio file... but I haven't the slightest idea how to do any of that.
Any idea how to fix this?
*UPDATE* looking into the dirtysanta method of flashing the modem.img, it appears that's not even an option for the T-Mobile variant.
Sounds like LG's solution is to have you send it in... I've already seen other users go through that and end up having their phone hostage for a $21 diagnostic or a $378 proposed HARDWARE fix for a SOFTWARE problem _they_ caused.
While I personally have had good experiences with LG in the past, looking into this really kicked the hornet's nest on others who've had this issue. Many coming from the V10 who were told a V20 would save them from this.
Sounds like it's time to sick the social media beast on a company to make them stop being shady.

I have a tmobile v20 and I have not had any issues with service and I have not seen much on the forums. What issue are you having exactly? Were you rooted? Any errors besides no service?

darkknight1812 said:
I have a tmobile v20 and I have not had any issues with service and I have not seen much on the forums. What issue are you having exactly? Were you rooted? Any errors besides no service?
Click to expand...
Click to collapse
Basically that's it. Phone worked perfectly, did an OTA update, and now it's like my cellular radio just doesn't work at all. Which means I now have a WiFi only media player that can't make calls, SMS, MMS or utilize cellular data.
Goes straight to "no service". I can go under Network settings and it displays that my phone's radio is off. T-Mobile rep confirmed that my SIM didn't shoot craps, and that none of theirs work in this phone either. They actually showed that the phone was even detecting my SIM by showing me that it's picking up my phone number.
Surprised you aren't hearing about this, I'm seeing this reported all over the place. This is just a couple of links. Been going at this all since the OTA hit me at 6PM yesterday.
https://community.giffgaff.com/t5/Help-Support/LG-V20-No-Service-after-update/td-p/21190404
https://forum.xda-developers.com/v20/how-to/guide-us996-service-radio-off-ota-kdz-t3727126
https://forum.xda-developers.com/v20/help/lg-v20-us996-radio-off-security-update-t3718507
https://forum.xda-developers.com/v20/help/lg-v20-us996-network-radio-button-off-t3727986
An XDA user sent his in, and ended up having to either pay a $21 diagnostic fee, or pay $400 for them to shove a bunch of aftermarket parts in his phone (which is insane given that the only thing between the phone features working and not working was an OTA).

Have you tried reflashing a kdz? It is possible that something happened during the update. Make sure you flash a kdz with the same anti rollback number (most likely 1 if it took the recent ota). I believe the patched LGUP can flash just the modem partition.

Yeah. I heard about this. For the other xda user, he had purchased a refurbished device from a third party seller of some sort. Some where along the way the internal parts (motherboard) were replaced with cheap knock offs. LG flagged the phone for having non-LG parts inside. The upgraded firmware didn't play nice with the hardware, since it wasnt built to LG's specifications. Anyways not entirely LG's fault on that. A kdz could help but I doubt it will do anything. For people who have lost radio functions entirely to just a simple ota, most of them have had to get hardware replaced to fix. All around bummer. Hopefully lgup can bring it to life.

I'm having a similar issue and can say that for us with ARB=1 (i.e those with the Security Patch past 01/01/18) aren't going to find salvation this way
It's coincidental this thread popped up, because I'm trying to diagnose a similar nature as well. I've been swapping out parts and testing to see what's going on as part of my phone repair. After swapping between different plastic bumpers (this is the antenna bumpers). I can say this is not a hardware issue for us DIY'ers. I've taken the picture in the Settings > About Phone > Network to show that my antenna signal is just as normal without a SIM inserted. (Picture 1). I believe this is not an IMEI issue because it comes up clean for both ESN and Tmobile's side. If it was a blacklisted phone, then I shouldn't be able to connect to Wifi Calling. However, multiple instances: I've gotten a Notification from Call Services yet still able to call/sms test but only with Wifi Calling enabled; which reinforces the observation that this isn't hardware-related. (Picture 2).
LTE Discovery confirms a working radio, as the EARFCN information populates with connecting cell tower activity that's typical of SIM activity; with the sole exception of my Data/Voice Network Types coming up UNKNOWN (Picture 3). MCC+MNC Information proves our phones are talking to Tmobile, at the least, which further shows this being less of a hardware issue. I've KDZ'd my phone with LGUP as far back as 10P to no success.
If there is a problem relating to OTAs; someone else has to investigate before the ARB = 1(Anti-RollBack) to discover more information. Those of us on 10P aren't allowed to test out previous modems due to our bootloaders; which incidentally is all of us with this No Service problems. Ack!
texasaggie1 said:
.....
.....
10p Warnings based on what we know:
WARNING #1 You must flash the 10p modem and bootloader for this to work. If you don't you will soft brick.
WARNING #2 Once you go to 10p modem and bootloader you can't go back to previous versions. If you try you will HARD brick your device.
WARNING #3 10P rom only works with 10p modem and 10p bootloader. Any other combo SOFT bricks.
WARNING #4 TWRP backups of previous versions will not restore correctly once you are on 10p. When you restore a previous version (10k and before) you will soft brick. You can unbrick by just installing the 10p ROM, modem, and bootloader over the top of your restore *****Restores and Backups of 10p roms work just fine.
BOTTOM LINE: Going to 10p is a TOTAL commitment and there probably will never be a way to go back. That said, I'm on 10p and so far it works great.
https://forum.xda-developers.com/v20/development/rom-10p-debloated-rom-beta-flashable-zip-t3656616
Click to expand...
Click to collapse
Same sentiments can also be verified here as well..
[FIRMWARE] [H918] [10p] [10k] [10j] [10i] [10d] TWRP Flashable Bootloader and Modem

I'm having problems with a VS995. Bought it new on ebay, received it today 10/27/2018. I did get signal, then upgraded via phone software update, but it failed, and failed, and failed. so i used the verizon software via pc. Successfully upgraded to 7. then NO SIGNAL. so i updated via phone, but the download kept disconnecting. so i downloaded the 8 bin, upgraded via LGUP, success. Still NO SIGNAL. =( . Returning the phone now. buying a used one, might be better.

Was this problem solved? Because I have the same thing, radio off & really slow charge (phone has to be off in order to charge, when on the battery drains faster than it charges). I've flashed 10p with lgup & it's the same thing, right now I'm rooted with TWRP recovery, Magisk & the H91810u rom. I've done factory reset, flashed modem zip file, installed a network app that trys to manually start the radio (radio on) but it fails & stays "radio off". Any suggestions would be greatly appreciated, I'm almost ready to give up on this thing.

mgzavala said:
Was this problem solved? Because I have the same thing, radio off & really slow charge (phone has to be off in order to charge, when on the battery drains faster than it charges). I've flashed 10p with lgup & it's the same thing, right now I'm rooted with TWRP recovery, Magisk & the H91810u rom. I've done factory reset, flashed modem zip file, installed a network app that trys to manually start the radio (radio on) but it fails & stays "radio off". Any suggestions would be greatly appreciated, I'm almost ready to give up on this thing.
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If you read you'd know it wasn't, as stated by earlier posters the only fix is to send to LG for repair, you probably got one of those knock off phones
Sent from my LG-H910 using XDA Labs

cnjax said:
If you read you'd know it wasn't, as stated by earlier posters the only fix is to send to LG for repair, you probably got one of those knock off phones
Sent from my LG-H910 using XDA Labs
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How could that be this phone was bought from T-Mobile, I would doubt that they would pull a stunt like that. And wouldn't it have had the same problem before when I rooted the first time? Or am I missing something here?

mgzavala said:
How could that be this phone was bought from T-Mobile, I would doubt that they would pull a stunt like that. And wouldn't it have had the same problem before when I rooted the first time? Or am I missing something here?
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Click to collapse
Return it to, Tmobile, or send it LG to be repaired, scrap it and buy a new phone.
Sent from my LG-H910 using XDA Labs

Here on my LG V50 ThinQ am having same issue after an OTA update which lasted for like 4 days, I've kdz'ed my phone with different variant of the LG V50 stock ROM even has to crossflash to an EU stock ROM yet no way and i can say for sure it's no hardware issue but rather LG been messed up somehow