[Q] A501: Internal 3G modem dead? - Acer Iconia A500

Hi all,
I have an Iconia A501 which was sent me from the customer service in exchange of another one with bad pixels. Yesterday, for the first time, I put my simcard in the slot, then I got the usual message "Simcard inserted or removed, the tablet will restart". Then it restarts itself, but I still get "Insert a SIM Card", just like it wasn't there. So, basically, the tablet can recognize when I insert or remove the sim card but then it's not used. I'm in Italy and, AFAIK, it shouldn't be SIM locked since the old tablet was working fine. I also tried with other sim cards, of various carriers, but nothing works. So, the question is: is the internal 3G modem dead? What can I do to investigate the issue? I tried with two roms, Taboonay 2.2 and Harkon 1.0, which both should support the internal modem.
Thanks for any clue.

cm0901 said:
Hi all,
I have an Iconia A501 which was sent me from the customer service in exchange of another one with bad pixels. Yesterday, for the first time, I put my simcard in the slot, then I got the usual message "Simcard inserted or removed, the tablet will restart". Then it restarts itself, but I still get "Insert a SIM Card", just like it wasn't there. So, basically, the tablet can recognize when I insert or remove the sim card but then it's not used. I'm in Italy and, AFAIK, it shouldn't be SIM locked since the old tablet was working fine. I also tried with other sim cards, of various carriers, but nothing works. So, the question is: is the internal 3G modem dead? What can I do to investigate the issue? I tried with two roms, Taboonay 2.2 and Harkon 1.0, which both should support the internal modem.
Thanks for any clue.
Click to expand...
Click to collapse
Check your build.prop file,and make sure it has a # in front of ro.carrier=wifi-only.Should be at the end of the file.
Or, you can just check to see that you have the wireless 3g menus in the settings.
Make sure the sim is oriented correctly in the slot. there is a very tiny image to show how (unfortunatly it took me 10 minutes to figgure this out)
Don't insert it with the tab on. Might explain the reboot. Never tried it, just a guess. Might even cook the sim, one never knows.
Go back to recovery, do your 3 mandatory wipes, and try Harkon rom. It's a 501 specific.
I get the message every once in awhile but usually a reboot fixes it.
You may just need to reverse your steps, remove with tab on. Shut down. Reboot. Shut down and insert sim, then boot it up.

Moscow Desire said:
Check your build.prop file,and make sure it has a # in front of ro.carrier=wifi-only.Should be at the end of the file.
Or, you can just check to see that you have the wireless 3g menus in the settings.
Make sure the sim is oriented correctly in the slot. there is a very tiny image to show how (unfortunatly it took me 10 minutes to figgure this out)
Don't insert it with the tab on. Might explain the reboot. Never tried it, just a guess. Might even cook the sim, one never knows.
Go back to recovery, do your 3 mandatory wipes, and try Harkon rom. It's a 501 specific.
I get the message every once in awhile but usually a reboot fixes it.
You may just need to reverse your steps, remove with tab on. Shut down. Reboot. Shut down and insert sim, then boot it up.
Click to expand...
Click to collapse
With the old tablet I didn't need to shut it down before inserting the sim... so i can't se why it should be needed now everything rom related doesn't help too, I even de-rooted, even list CWM, and yet it doesn't work.
Inviato dal mio A501 usando Tapatalk

If you read the instruction manual it actually says to insert the sim/ sd card while the Tab is OFF - DON'T INSERT WHILE POWER IS ON...
Now I know its fun to try things out, however, when it comes to things of this nature I tend to follow the instructions...
Why not give it a try and see if it works. Look at it this way, it couldn't hurt...

Ok... I turned off the Tablet then inserted the sim and turned it on again. Guess what? Nothing changes The sim is still not recognized. I called the tech support and the tablet is going away for repair/substitution tomorrow

Related

Not Registered on Network

Hi guys,
I recently picked up a used S4 on Craigslist for cheap because the guy "screwed up" using Odin and flashed something that caused his phone to not register on any networks. I figured, what the hell, it's cheap enough and I might be able to restore it. So far I've restored the Rogers firmware over Odin and tried installing a custom rom/recovery too. I'm still getting this problem unfortunately. The IMEI reported with *#06# and in the status screen does match the sticker on the inside of the phone.
So I'm sure everyone's going to suggest that the phone was stolen and the IMEI has been blacklisted. My provider (Fido/Rogers) apparently doesn't care if the IMEI is blacklisted, they'll let it run anyway. I called up Fido anyway (since I'm a Fido customer) and asked them about the IMEI of this phone and they say they don't have any record of anyone calling in reporting it stolen and they don't have an IMEI database so she didn't have much to say about it.
Does anyone have any other suggestions? I've also flashed just the kernel, and I will flash a modem onto it too. I know my SIM card works, and both my SIM card and the last owners SIM cards don't work. I know the radio works because it picks up the emergency signal fine, and the SIM tray isn't damaged because when I put in my Fido SIM the Fido APN's automatically come up, as well as the lock screen goes from "No SIM inserted" to "unregistered SIM." Could my EFS partition be borked? Wifi works and IMEI shows up correctly.
The buyer said he would take the phone back if I can't fix it, but I want to try a bit more before I give up. If anyone has any ideas or suggestions, that would be great. Thanks a lot in advance XDA!
Summary:
-Used S4
-Owner flashed something wrong in Odin
-Gets "Not registered to network" error, unregistered SIM error
-Tried restoring
-Tried new ROM/Recovery
-Carrier says IMEI is fine, also tried directly registering the IMEI to my account
-IMEI is correct in settings/sticker on back of phone
-Wifi/everything else all works
Sounds like it's SIM locked to a different network. Try the the guide here: http://forum.xda-developers.com/showthread.php?t=2285431
MatinatorX said:
Sounds like it's SIM locked to a different network. Try the the guide here: http://forum.xda-developers.com/showthread.php?t=2285431
Click to expand...
Click to collapse
My girlfriend has a Bell sim, which when we insert, gives us the "Please enter unlock code" screen.
My sim does not do that. I know this device is for my carrier, but I figure the easiest way to get this going is to just unlock it and see if the problem persists on other networks.
I've tried that unlock tutorial before. The first time I tried it, when I just got the phone from the previous owner, it said "Golden-backup does not exist" so I couldn't do the restore step of that guide. After Odin-flashing everything and starting over, I can't even get into the UMTS menu anymore! I'll try another restore and give it another go though.
Edit: Another problem. I did a restore again using Odin and notices that it never properly wipes the phone. When I finish flashing, my Wifi still autoconnects on first boot, and every few seconds, a process crashes causing the phone to freeze. Has anyone heard of this kind of problem before?
Quick update:
Managed to Odin-flash it to the earliest firmware I could find for the phone without any crashing or freezing problems. Trying to do the network unlock method mentioned online. It does not work, even though I'm following the instructions to a T. Could it be that my EFS partition is borked and that the NV rebuild can't happen, meaning my radio configuration would also be borked?
Edit: Oh and when I booted up my phone for the first time, the phone was actually ON Fido! But within a few seconds, it went back to "Emergency calls only."
Hmm, that is some odd behavior, and definitely not a carrier lock. Shame it's never that simple to fix.
Not quite the same as your issue, but I lost my ability to make and receive calls after flashing a newer modem on an AOSP firmware. Flashing custom kernels, older modems, the latest stock rom and kernel were no help at all. I tried everything I could think of short of groveling. In the end the only way I got everything working again was to flash the original factory firmware my phone shipped with, factory wipe it from stock recovery, then flash it again. If you've already tried that (and I'm guessing you have), consider contacting Samsung regarding warranty. They've been really good to me in the past, even with second-hand phones.
I can confirm that Odin doesn't clean everything out. In my trials I also noticed that flashing via ODIN without a factory reset presented no setup wizard, caused lots of FC's and left some previous files hanging around.
Sounds like a bad sim tray.
Sent from my SAMSUNG-SGH-I337 using xda premium
make sim fit tighter
graydiggy said:
Sounds like a bad sim tray.
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
I had trouble with my handset after it got run over in the street, making it's otterbox earn it's money. The only bad symptom after that episode was Emergency calls only kept recurring.
I cut a tiny square of transparent scotch tape, avoided touching the sticky side, and placed it squarely on the SIM chip's backside, to make it fit the sim slot more snugly. It sounds like you should try stacking two or three layers on your chip as it sounds to be more loose than mine is.
Hi everybody! Thanks for all the help trying to fix it! It ended up being that the guys the previous owner had unlock it used the debug-menu unlock method and my phone was one of the ones that doesn't accept it. Lots of other people complained about similar problems as me in the free unlock method thread. In the end, I paid for the FastGSM USB Unlock method and it fixed the problem.
OH MY GOSH YOU JUST SAVED ME from buying another phone!! THANKS so much.. I added 3 layers of tape on the back of my sim and it works!!! weird.. cause I have the Dual Sim.. and it was the first sim that would not work. the second sim was fine.. anyways.. THANKS SO MUCH!!

[Q] "No SIM Card"

I pulled the SIM card out last night on my Note 3 and then put it back in. After booting up , the phone showed a "No SIM Card" error. I have tried to re-seat the card and have rebooted many times and it still does not work. My old Note 2 is being used by my son so I put his SIM card in my phone and it works just fine so obviously its a bad SIM card at this point which I confirmed by putting it in the Note 2 and it said the "No SIM Card" error. At this point I just need to go to Version and get a new SIM card. The question I have is, do I need to wipe my phone and put it back to a stock Rom or will Verizon just give me a new SIM and ignore the fact that it rooted? This issue really isn't a warranty situation so I was hoping to not have to go through all of that.
nlambson said:
I pulled the SIM card out last night on my Note 3 and then put it back in. After booting up , the phone showed a "No SIM Card" error. I have tried to re-seat the card and have rebooted many times and it still does not work. My old Note 2 is being used by my son so I put his SIM card in my phone and it works just fine so obviously its a bad SIM card at this point which I confirmed by putting it in the Note 2 and it said the "No SIM Card" error. At this point I just need to go to Version and get a new SIM card. The question I have is, do I need to wipe my phone and put it back to a stock Rom or will Verizon just give me a new SIM and ignore the fact that it rooted? This issue really isn't a warranty situation so I was hoping to not have to go through all of that.
Click to expand...
Click to collapse
Why not use your son's Note 2 (unless it's also rooted) and get a new SIM Card? It doesn't matter which phone the sim card is put in, as long as it is associated with a Verizon phone number. Then you can switch the card back. I don't know if Verizon keeps track of "rooted" phones by customers in case you try to reset your phone to original and then claim a warranty.
Just my $0.02.
Cheers,
B.D.
I went ahead and did a Nandroid backup and then reverted it to stock and will switch back after.
Sent from my Xoom using Tapatalk
I usually swap sim cards with my phones when i need to and never have a problem. One time it wouldn't read and i had to use a screen cleaning cloth to wipe it off and it worked again.
Sent From My Galaxy Note 3

Need some help getting back into things, thanks!

Hey all! I have made the switch to a Nexus 6P about a year ago, so I am quite rusty with the S5 and how to do things with it. I recently sold an S5 on swappa, and I am attempting to help that user get it back to stock. I would have done this before selling, but we thought the process would have been more simple.
To quote the user I am assisting at the moment "... I crossed into canada a few days ago, phone worked good with international plan. cross back to US and keep getting weird "not registered on network" messages and have 0 connectivity to my Verizon phone network. Tried new sim card, verizon store says the issue is because it is rooted etc (doubt they know what they are talking about)....But figured i'd do a clean install etc and see what happens. Followed instructions for Odin. From what i read it sounds like I need the OA 8 Lollipop retail tar..phone model number is SM-G900V. Keep getting "NAND Write Start!! FAIL! (Auth)" in Odin. Tried multiple USB cables and other random tips I found online. Any advice? Am I using the wrong stock tar?"
What can I/we do to resolve this issue? I have searched xda, but I am totally lost with the S5 to be honest. Things have changed so much since I used the phone that I have no idea where to start. It was on Alliance ROM before I shipped it. It has the Toshiba eMMC (or whichever doesn't have bootloader unlock).
Again, thanks in advance guys!
Some more info about the phone, I'm the buyer.
Still running Alliance. I do have an IMEI # (some sites say that could be an issue).
Model/Phone name is Samsung Galaxy S5 SM-G900V
Baseband Version is G900VVRU2BOK3
Kernel Version: 3.4.0 [email protected] #1
Tue Nov 17 20:06:51 KST 2015
Build number: AllianceROM_VZW_V10_G900V_XXU1BOH4
Knox version 2.3
Exact message I get is "out of service area" when i make a call. then a "mobile network not available" message will pop up after.
miketon907 said:
Some more info about the phone, I'm the buyer.
Still running Alliance. I do have an IMEI # (some sites say that could be an issue).
Model/Phone name is Samsung Galaxy S5 SM-G900V
Baseband Version is G900VVRU2BOK3
Kernel Version: 3.4.0 [email protected] #1
Tue Nov 17 20:06:51 KST 2015
Build number: AllianceROM_VZW_V10_G900V_XXU1BOH4
Knox version 2.3
Exact message I get is "out of service area" when i make a call. then a "mobile network not available" message will pop up after.
Click to expand...
Click to collapse
Silly question, but have you tried pulling the battery, and Sim, let it sit for a sec, then power on to see if you have service? Might just need to reset the prl. Never been to Canada with the phone so idk what's going on ha.
Could also check the data settings to make sure it's set to CDMA+LTE instead of global or whatever other options it has. You haven't flashed a new radio file, have you? @miketon907
tr4nqui1i7y said:
Silly question, but have you tried pulling the battery, and Sim, let it sit for a sec, then power on to see if you have service? Might just need to reset the prl. Never been to Canada with the phone so idk what's going on ha.
Could also check the data settings to make sure it's set to CDMA+LTE instead of global or whatever other options it has. You haven't flashed a new radio file, have you? @miketon907
Click to expand...
Click to collapse
Pulled battery out and sim. No service fix. If I turn phone on with sim card out, it will say "no sim card". back sim card back in, no net work connection....It is set to CDMA+LTE. No, I have not flashed a radio file.
miketon907 said:
Pulled battery out and sim. No service fix. If I turn phone on with sim card out, it will say "no sim card". back sim card back in, no net work connection....It is set to CDMA+LTE. No, I have not flashed a radio file.
Click to expand...
Click to collapse
Ok, just trying to rule things out.
You activated the SIM in the US and used it before going to Canada, right?
Yep. so Sim card A which I got after buying the phone was working good. I went to Canada and used same sim card on international plan, went back to US and suddenly phone loses mobile connection and has no service as soon as I cross US border. went to Verizon for sim card B, sim card B does not work either.
miketon907 said:
Yep. so Sim card A which I got after buying the phone was working good. I went to Canada and used same sim card on international plan, went back to US and suddenly phone loses mobile connection and has no service as soon as I cross US border. went to Verizon for sim card B, sim card B does not work either.
Click to expand...
Click to collapse
You could try just doing a factory reset on recovery if you haven't already. Instead of starting from stock. Just wipe the data partition. If you wipe the system partition it won't have anything to boot into
oh. Well i'll try that later tonight. Report back around 11pm est. thanks!
tr4nqui1i7y said:
You could try just doing a factory reset on recovery if you haven't already. Instead of starting from stock. Just wipe the data partition. If you wipe the system partition it won't have anything to boot into
Click to expand...
Click to collapse
ok did that. (wipedata/factory reset->wipe cache partition). still have alliance-safestrap etc on the phone. sim card still giving weird messages.
miketon907 said:
ok did that. (wipedata/factory reset->wipe cache partition). still have alliance-safestrap etc on the phone. sim card still giving weird messages.
Click to expand...
Click to collapse
Still the same messages?
yes, same messages.
miketon907 said:
yes, same messages.
Click to expand...
Click to collapse
Try flashing one of the modems on this page. It should reset the radio to have service again. I'd do it without the sim card in. Boot once, you obviously won't have service since there isn't a sim. Then turn off the device, insert the SIM and reboot.
I am looking into the write fail now just in case you can't even flash a modem file.
Also, you downloaded the samsung drivers, correct?
EDIT: I found an old thread that might help you troubleshoot odin - http://forums.androidcentral.com/sa...hacks/391849-galaxy-s5-odin-failing-root.html
EDIT 2: You might just have to switch to a different tar file. This user states that they used the same stock version as the one they were currently on. I'd give that a shot first. Then check to make sure "block reactivation" in security settings isn't checked. The exact directions that should get you going are from a user on that page, as follows;
"chainfire xda quote op-Follow these instructions to the letter. Do not touch any buttons or checkboxes that are not listed below to touch!
- Download and unzip the CF-Auto-Root-....zip file (see posts below this one)
- If you end up with a recovery.img and cache.img file, you've extracted twice. You need to end up with a .tar.md5 file - don't extract that one
- (USB) Disconnect your phone from your computer
- Start Odin3-vX.X.exe
- Click the PDA button, and select CF-Auto-Root-....tar.md5
- Put your phone in download mode (turn off phone, then hold VolDown+Home+Power to boot - if it asks you to press a button to continue, press the listed button, or run adb reboot download command)
- (USB) Connect the phone to your computer
- Make sure Repartition is NOT checked
- Click the Start button
- Wait for Android to boot
- Done (if it took you more than 30 seconds, you need practise!)
NOTE: Sometimes the device does *not* boot into recovery mode and root your device. Just do the entire procedure again if this happens. If it still will not install root and such, make sure that in Odin "Auto Reboot" is not checked. Then after flashing, pull the battery, and boot with VolUp+Home+Power button to boot into recovery manually. This will start the install process.
New to Samsung? Unfamiliar with Odin? Think all the above is a hassle? Get used to it. It's very simple, and us Samsung folk use Odin (or Mobile ODIN ) for everything! It's so very very convenient once you get used to it. Notice the 30 second comment above? For experienced users, the entire process indeed takes only 30 seconds!" - Dale Borrelli
Final note. Try the tar for the android version you are currently on first, then go up to the version you'd like to be on.
Edit: @miketon907 any luck yet?
yes, thanks a lot. flashing the modem worked. have service now again.

i9505 no network service at all (only emergency calls) - any ideas?

Hey there!
I try to keep it short. I have no network service (the sim is working in other phones). There is sometimes a "stop" like symbol in the top bar or an exclamation mark saying "no chosen network available". However, emergency calls should be possible (phone got network access).
I bought the phone, so it's used and that "problem" was known. I thought I could fix it. I tried the following:
Rooting and RegionLockAway.
Flashing new Firmware (I9505XXUHOA7)
Flashing the ME2 modem and trying to SIM-Unlock it. However I get an popup "error" after pressing NV-Rebuild (it stated Golden Backup exists) and then the phone immediately reboots.
SIM detection seems to work (asks for PIN and notifies on empty sim)
The IMEI is there.
If I try to choose networks it gets a list with EPlus, T-Mobile and Vodafone (I am currently in Germany). Unfortunately I do not know where the phone's from.
Also, I never experienced any popups asking for unlock codes or similar - it is just not able to register on the network.
How can I make sure theres no SIM Lock?
How can I make sure theres no Netlock?
After those two are clear what else could be done? What about NVData?
Anyone any ideas? Thanks!
I can post some infos from the service/UMTS menu, however I am not sure which. I also searched and tried hours but without success.
Replace the SIM card tray. From appearances yours is dying.
Thanks for the reply. Can I test this somehow? I am just wondering since it asks for SIM-PIN and even reads APN data etc. I just searched and it is about 10 bucks on ebay and I should be able to do it at home that would be cool. So since it is detecting my SIM can I test somehow whether there could be other problems causing this problem bevore I try to replace that sim-slot?
Thank you!
By the way: Yesterday I also tried to repair NVData with the SamsungUnlock software as posted somewhere here. While that worked without a problem it did not change anything.
To sim unlock the phone, you could try flashing the 4.2.2 modem, rooting, and using regionlockaway.
fassal said:
Can I test this somehow?
Click to expand...
Click to collapse
I wish there was a way to test it. I only knew mine was bad by sheer luck. Mine revealed itself only after flashing an Android 4.2.2 stock ROM; more current versions didn't show anything.
Could there be a loose connection inside the phone?
Where it is a known issue, there is a possibility that the original owner replaced the SIM tray. When they did, they likely forgot to reuse the foam pad from the top of the connector on the old tray. If that pad is missing the connector will pop up in time.
hey thanks for your help!
I will open the phone and check the connector of the SIM-Tray. But as I already described, it even asks me for the SIM-Pin, but maybe even though something might not be right.
Regarding flashing an 4.4.2 Modem: Is that the "9505_DXUAME2_MODEM.rar"? If, I tried that already (installed that modem, rooted, RegionLockAway and even with the Serive Menu SHA256 OFF method (this one did not work since I got an Error and the phone did not freeze etc.). However, I did not install a full 4.4.2. Stock Rom yet.
Well maybe I could buy a SIM Tray and just connect the PIN without acutally gluing it on the phone. This way I might be able to get a refund if this does not do the trick.
If all these fail I just have to find some new use for that phone
You cannot use an Android 4.4.2 modem or ROM to unlock. The modem or ROM MUST be from Android 4.2.2 or RegionLock Away will not work.
Regarding the SIM tray, foam mounting tape from the local store on top of the connector will work. No need of glue.

"No SIM card detected" & "No service"

Hi all,
I have a problem with my XC, i hope there's someone here who could help me out with this .
I get a SIM card error when i start the phone. After a while (5-10 mins) the error transforms into "No Service" as if the phone now detects the SIM card but has no service whatsoever.
Things i did to my phone prior to this:
- unlocked bootloader
- installed custom recovery
- root
- installed custom ROM
- drm fix
The phone did function properly for a few months actually after these operations without a SIM card error even once. But then i tried to install custom ROMs again (and i'm sure didn't flash ROMs not suited for XC) -actually tried to install "existenz" ROM but i did get a bootloop so i -once again- did the usual procedure with flashtool and flashed a firmware to set everything back to stock as close as possible. That was, when i started to get the SIM card errors. After several restarts (cold and warm) the phone sometimes recognized the SIM card and i could use the phone normally. But this was true only till the next restart, where i got the same SIM errors again.
Things i tried:
- flashed several different firmwares (official) with flashtool (wiping everything) - all the newest firmwares.
- *#*#72786#*#* in dialer to wipe carrier settings
- *#*#4636#*#* in dialer to go into phone settings and changing those settings randomly
- flashed another AOSP based custom ROM instead of stock sony
- wiping and formatting everything between the flashes of course
- cleaning and re-inserting SIM card (which i never took out before anyway)
But unfortunately nothing worked. Phone keeps to not recognizing the SIM card (which is working just fine in another phone). Everything else works just fine on the phone. The IMEI is displaying correct. I'm almost certain that the fault isn't hardware-based (i didn't drop the phone or exposed in water etc.) but software-based. Did i just managed to brick my phone by flashing something related to the modem which i'm not aware of?
I can't find any solutions on google, which help me, which is why i'm posting it here. Sorry for the long post.
Did anyone experience such an error and/or knows what else i could try to fix this? I hope for answers
Thanks in advance!
Anyone?
I've got the same problem.
I didn't unlock the bootloader or anything prior to getting the bug.
I wanted to downgrade to nougat, because aparently it helped someone in the forum below, but I didn't manage to do it.
https:// de.ifixit. com/Antworten/Ansehen/468864/Sim+Card+not+picking+up+mobile+network.+Possible+software+issue+(Oreo)
Did you try nougat, when flashing different firmwares?
Your post makes me question if its worth it, trying to downgrade.
Try to remove sd card if you have one. then restart the phone and see if sim card is recognized.
I had the same problem and I think it was a hardware failure in the end.
I also tried almost all the things you were writing above. In my phone it started slowly. Sometimes the SIM was detected but after some time the connection was lost.
It happened some time after I installed a new battery.
But since there are no original batteries available for the device anymore and the new battery was even worse than the 5 year old original battery, I gave up investigating the SIM issue and don't use the phone any longer.
I bought a new (used) x compact because I still like the size and I saw some development was going on for this device.
In the end I cannot tell whether the SIM was not detected because I broke something while changing the battery or due to age of the phone but I think it was a "normal" failure.
I also read from others that they had the problem and the SIM was working for some time after I switched the battery before it stopped working.
Nevertheless. Good Luck to you. Maybe it is something different on your phone.

Categories

Resources