UPDATE: 4G/LTE wouldn't work without erasing all possible APNs except Ting's (with some messing around to get settings correct). LOS14.1 continued to throw errors with this install though so ultimately re-flashed with RR and it's working perfectly now.
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I'm trying to port an S4 Mini SPH-L520 (CDMA) for use with Ting. Has anyone successfully done this with full access to phone, text and data? Having updated the carrier settings while stock, then flashed LOS 14.1 I've got functional voice, SMS, WiFi and can see 3G sporadically when I refresh network settings, but 4G/LTE's a no-go -- I get a "Your mobile data service couldn't be activated" error from the setup wizard every time the phone starts. It's definitely seeing Ting's SIM card because it's showing the correct ICCID, but won't work at all in RUIM/SIM mode ("No service", "Select SIM Card" with no options) and defaults back to NV. Haaaalp? I'm very computer literate but cell phones are terrifying and mysterious black magic...
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My phone was working fine for a week or so. I had flashed a Legacy SERO phone over to this phone. Suddenly today the 3g icon disappears and under phone status, the mobile network state is always disconnected and I no longer have 3g data or MMS. Voice and SMS work fine.
The original donor phone works fine too (3g / MMS).
I've tried:
- flashing back to stock
- trying to reprogram NVItems (HA/AAA/Mobile IP stuff) back onto Note 2 (I think they were already there and I didn't change them, but it still doesn't work)
- tried to copy the APN for the donor phone over: but I cannot find a way to program APN on the Note 2, and isn't APN for GSM anyway?
- tried to copy the PRL from the donor phone over: but I cannot find a way to program PRL (tried DFS 4.0.1.1, which cannot read nor write the PRL)
This is really frustrating without data, can anyone help?
Chanman said:
My phone was working fine for a week or so. I had flashed a Legacy SERO phone over to this phone. Suddenly today the 3g icon disappears and under phone status, the mobile network state is always disconnected and I no longer have 3g data or MMS. Voice and SMS work fine.
The original donor phone works fine too (3g / MMS).
I've tried:
- flashing back to stock
- trying to reprogram NVItems (HA/AAA/Mobile IP stuff) back onto Note 2 (I think they were already there and I didn't change them, but it still doesn't work)
- tried to copy the APN for the donor phone over: but I cannot find a way to program APN on the Note 2, and isn't APN for GSM anyway?
- tried to copy the PRL from the donor phone over: but I cannot find a way to program PRL (tried DFS 4.0.1.1, which cannot read nor write the PRL)
This is really frustrating without data, can anyone help?
Click to expand...
Click to collapse
If anyone else runs into this, here's how I fixed mine:
I believe the problem was a combination of APN settings and the phone trying to go into LTE mode (which I don't have as a SERO classic user).
I had to turn off eHRPD and manually force the correct profile to load. I did this with:
##3282# => MSL => Edit => eHRPD (turn off)
then ##3282# => MSL => Edit => Others => LTE APN Settings => 3rd option (LTE - Sprint OTA). Oddly, before this change, none of the three options was checked, that could have been the source of my trouble.
Put it on CDMA mode only.
No cdma/lte. That will not work
I have received a p607t tablet, it was flashed by smb. to p905 firmare (with no imei). i re-flashed it with stock P607TUVUBOI2 firmware (4 files, so-called "service" firmare), imei is back (to what is printed at the back-side) but mobile networking *still* doesn't work: no connection. I'm using not t-mo sim-card, but looks like the tablet was already unlocked
From service menu *#0011#:
SERVICE : LIMITED
NETWORK : UNBLOCK
IMEI Certi: PASS, 1
From Advanced Signal Status:
Carrier:
Network Type: Unknown
Signal info: n/a
Neighboring CID: no neighboring cells --- wtf? >> other devices work ok with this sim in lte and 3g modes<<
GSM service: emergency calls only
GPRS service: disabled
Any ideas?
OK, so, what is done with p607t to the moment:
1) reflashed CP (modem/RF??) to latest stock (P607TUVUBOI2)
2) reflashed AP/PDA (core system??) and CSC (consumer stuff??) to P605XXU1EOI5 (from p605, have one right here - it never had network-lock from factory)
3) using qpst and qxdm changed nv parameters (extended lte bands, enabled gsm rf-bands - there were none in stock at all, only wcdma)
now the tablet sees my local gsm network with this sim-card, signal is 4/5 bars, but still no internet connection - WTF??
p.s. when trying manually to register in my local network - it fails with "try again later"
p.p.s.: what is i find weird, in service menu *#0011#:
NETWORK : UNBLOCK
- this line exists only on p607 - is this the key?
Then, i insert this sim into p605 (completely stock P605XXU1EOI5) - it works like a charm
need some help - where to dig next? point direction plz
UPDATE. i've been tweaking 607t nv items with qxdm, making it alike that ones 605 has. practically everything is alike now, but still it doesn't even try to establish data connection with cell...((
btw, 605 does not have "esf embedded file system", while 607t has one (can be seen through qpst-esf explorer)
also, some nv-items present in one model, some present in another
m4D2016 said:
UPDATE. i've been tweaking 607t nv items with qxdm, making it alike that ones 605 has. practically everything is alike now, but still it doesn't even try to establish data connection with cell...((
btw, 605 does not have "esf embedded file system", while 607t has one (can be seen through qpst-esf explorer)
also, some nv-items present in one model, some present in another
Click to expand...
Click to collapse
I had to flash back to the original kitkat firmware and take OTA to upgrade to lollipop. There is a known issue with the 607t losing data after roms are flashed. Some had luck with flashing the same rom twice but it never worked for me. Used Sam mobile to pull original and went from there. Good luck
I performed "device init and reflash" with Keis. The device is back to stock completely, except:
- nv items data
- esf embedded file system data
so... my guess - i need to restore these in order to have mobile networking working.
could someone post a qcn-file with factory esf-data?
ok, let's take another way: how can i get some gsm-module debug-output or log to understand, what's going on it?
i'm trying to write some custom modem.bin to /dev/block/mmcblk0p2, but after reboot data in there is reverted to stock modem.bin - how come?? is that bootloader doing? where is the stock-one stored?
I just installed the HTC_One_M8_GPe_Marshmallow-6.0_MRA58K.H14_AROMA-Installer.zip on my HTC Verizon M8. After doing so I can only get data via Wifi, it does not connect to 3g or 4g. I was wondering if this is a known issue if someone could direct me on what steps I should take to troubleshoot. I should mention that even though its a verizon phone I am using Smart talk.
Here are my current settings:
Preferred network Type: Global
CDMA Subscription: RUIM/SIM
Access Point Names : VZWINTERNET.
Network Operators : receive "Error while searching networks"
SIM status -> Cellular network state : disconnected
You used this version? http://forum.xda-developers.com/verizon-htc-one-m8/development/rom-vzw-stock-gpe-5-1-lmy47o-h9-t3212413
Did you do as the thread states:
[*] If you have issues with 3g/LTE data hand off, do a full RUU and do a factory reset with the stock recovery. Alternatively just flash the stock recovery and do a factory reset. Theory is the stock recovery rebuilds NV data. Getting a new SIM card has also been reported to work. Calling customer service and asking them to reset your connection has also been reported to help.
I'm having similar issues but I'm using page plus(Verizon network with Verizon m8 and only text and calls work but no data. Also using Verizon APN any suggestions
So... I stared into the abyss, but I came back from the brink - unlocked bootloader, and the modem/calibration stuff got wiped during what should have been a routine TWRP flash from fastboot, and left me with no radios whatsoever. After flashing S048, and applying all the known OTAs up till S251, I got my wifi & bluetooth radios back, but it didn't seem to recognise my SIM (tried both slots).
After trying for almost a week, I also finally got the diagnostics mode going and was able to put a working QCN backup in place (thank you XDA and uploader).
So I flashed the LineageOS 15.1 20180413, and lo and behold, it sees the SIM and asks for a PIN to unlock it. So far, so good. Then (first time) Android says 'switching to mobile data, might take a while' but nothing really happens (I am on wireless; if I turn off wifi that doesn't make any difference though).
Under 'Network', 'Automatically select network' is enabled but 'Network' (right below) is greyed out. When I untick 'Automatically select network', it says 'Error while searching for networks'. When I re-tick it again, it says 'Registered on network', although nothing really happens.
Under SIM cards, it says slot 1 is populated, but says 'Mobile Vikings is disabled' (Mobile Vikings being my provider). The button to enable it is greyed out. Switching to airplane mode doesn't force anything either.
I've had a logcat instance open when toggling 'Automatically select network', but nothing related seems to show up. Any hints on what I could try/check? Or is this a coaster?
I believe that once you erase the modem stuff you'll always have serious problems restoring it. It seems like most people have to send the device in for service.
I've still no solution for an old P2 of mine and in that case I even had a TWRP backup.
Lenovo should really allow for us to flash stock images . An unlocked bootloader with LESS privileges makes no sense.
Wipe everything in twrp & flash twrp full backup which included efs & modem shared on our p2 forum. then flash Fastboot s48 only systemchuncks 0-14, boot & recovery then do 4-5 OTAs updates till latest one s251, you'll get you mobile network & calls back.
@eried1 Yeah looks like it
@amansehdav I have turned the P2 subforum upside down and I already tried this - restore a working S233 TWRP backup, flash S048 through fastboot, and upgrade with the OTAs till S251. No dice. Wifi and Bluetooth came back with that process, but the stock firmware would not see the SIM.
I was on PixelExperience (latest) and yesterday flashed through Magisk 17.0 and 17.1. Today morning device couldn't connect to mobile network at all (2G/3G/4G/LTE). Wiped it completely, flashed latest dev firmware and Nitrogen OS + unofficial Gapps for Android Pie. Everything works quite smooth, but still my device can't connect to mobile carrier - any ideas what I can try? It's crucial for me to fix it today since I need to be able to send/receive SMS tomorrow.
Tried switching sim slots?
Just to see if the sim card works with the other slot.
Does an IMEI number show for both slots under settings - about? (Don't tell us your IMEI)
Are you sure your network provider hasn't cut you off by mistake or some other weird account based issue?
Try another sim if you can get one.
A pay as you go sim without credit should still show a connection even if you can't use it
Yeah, I did try.
1. Tried other card (got polish Orange card which connects to EE, UK EE card - both work in my brother's SGS6).
2. IMEI is okay, don't know if IMEI SV should be 00 though.
3. Cards work okay in SGS6.
99% it's software issue - I've used Magisk modules to widen Wi-fi bands and other modules - I did format all partitions and flashed latest stable Global MIUI through fastboot though and it should override all the settings. I've used the *#*# code and I can't pass the test.