Trying to help all friend that have problem with the baseband on Galaxy S t959, t959v, GT9000, etc i have some problem with my t959v when boot up and waiting for network signal i see when i go to the menu and check the info i see the baseband unknown issue and this resolve my problem...
Step 1
Remember if you change the battery spec my t959v use a battery with 1500mAh i change with this one that have more mAh you thing this is crazy but when the phone boot up this problem come so i replace with the original mAh...
Step 2
Verify that you have the correct modem.bin in your phone. The other thing that probably make this error is the Sim reader check your Sim with other phone if your Sim is good then you have a problem with the Sim reader you can use the Sim reader from t959, Galaxy Captivate and Galaxy GTi9000.
Step 3
This is more difficult to check but verify the antenna cable is the white cable that connect from the main board to the sub-board on the phone if the cable is damage for some reason the phone give you the unknown baseband problem, you can check this using a multimeter in continuity check the ground and the center connector if you don't have the beep then change the cable.
if this don't resolve your problem check the sub-board when the white cable connect this have some circuit try change.
P.S
I know this thread for some one is stup.... but to me cheking this thing resolve 10 t959v and t959 phone from my costumer. One phone have this problem and can't be resolve because other person flash it using the bootloader of galaxy S 2 and the file was corrupt. I hope this help you....
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Hello Guys,
a good friend has now his HTC One X. His Problem: When he is charging his battery, the signal suddenly is gone. There is a red cross (x) and he needs to restart his mobile phone to fix it. This happend after he updated his mobile phone with an official update from HTC. So now he asked me, but I have an Galaxy S from Samsung and never had this problem.
So is there a fix for this or does ne need to flash a new OS on his HTC? Thanks for help
Best Regards,
blauersalon
(I'm very sorry for my bad English, I'm German )
Happens only when charging or all the time? I use to get this as well but that was because my sim was faulty. It would randomly show as no sim inserted.
Get him to try another sim if he has one or try the current sim in another phone to rule out sim issues. Otherwise it might not be sitting correctly in the sim tray.
I also thought about that, but this only happens when he is charging the mobile phone. I explain it:
- Plug in the Cable into a car adaptor, pc or electrical socket
- Mobile phone is charging
- after 20-60 seconds the mobile network is gone and market with a red cross
- Plug off the Cable -> Mobile network does not come back untill he reboots it
Very odd but try a new sin card though. Maybe some kind of electrical interference. Very odd though.
Sent from my HTC One X using Tapatalk 2
I also have to say, that everything was fine before the update from HTC. Maybe a software fault?
Tell him to reflash again but from stock RUU. If it was a software fault others would encounter it as well.
Sent from my HTC One X using Tapatalk 2
Hey all,
I told a friend I would replace the digitizer on his AT&T Nitro HD. The replacement went fine, but when I reassembled the phone and powered it up, it had no service and the "No SIM Card" icon is on the notification bar. I took the device back apart and reseated all the connections on the motherboard. Before I put the back housing back on, I put in the SIM card and battery in and powered it up to test real quick. The phone booted and it had service! I reassembled the phone and booted back up and there was nothing again. I have tried reseating connections again but still nothing.
I have been looking through the unbrick guides and I'm considering flashing a factory image to see if that will correct the problem. I'm fairly sure the problem isn't with hardware. Could the SIM card have been corrupted also?
Sent from my Galaxy Nexus using Tapatalk 2
Chewy1576 said:
Hey all,
I told a friend I would replace the digitizer on his AT&T Nitro HD. The replacement went fine, but when I reassembled the phone and powered it up, it had no service and the "No SIM Card" icon is on the notification bar. I took the device back apart and reseated all the connections on the motherboard. Before I put the back housing back on, I put in the SIM card and battery in and powered it up to test real quick. The phone booted and it had service! I reassembled the phone and booted back up and there was nothing again. I have tried reseating connections again but still nothing.
I have been looking through the unbrick guides and I'm considering flashing a factory image to see if that will correct the problem. I'm fairly sure the problem isn't with hardware. Could the SIM card have been corrupted also?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
It's possible that something happened to the sim card. Do you have another active sim to try?
Not a full size AT&T card. I only have access to VZW and T-Mobile micro SIM's.
Sent from my Galaxy Nexus using Tapatalk 2
A micro sim will fit inside the sim slot but it has to be positioned cardfully. You could also get a micro sim to full-size adapter.
If you can flash a stock rom try that and see if that fixes the problem.
Damaging the sim shouldn't male the phone lose its imei. Did you look for it by dialing *#06# or under About Phone?
I have everything ready from one of the unbricking guides to start from scratch, but I would want to back everything up first before going that route. I checked the Settings and *#06*# and they both say unknown/blank.
Sent from my Galaxy Nexus using Tapatalk 2
Maybe try updating using the official LG updater using recovery mode. Make sure to set your country and language. The imei should be on the label underneath the battery.
I actually tried that last night. Upgraded to V20c using the LG Update tool in recovery mode. The IMEI still wasn't present. He is just going to take it down to an AT&T Store and see what they can do.
It was a good effort on your part, that's for sure. I hope your friend has some luck with ATT. Is the phone under warranty? I'm asking because you had to replace the digitizer.
No it's not. I was hoping to get it fixed so I wasn't on the hook to replace his phone because something went wrong while I had it apart. I'm hoping they can take care of it with minimum charges or allow him to upgrade early. Thanks for the advice.
No problem. I just hope they are able to help out your friend.
It's strange that something like that would happen because taking it apart is pretty easy. Maybe something happened before you replaced the digitizer.
I'm wondering if anyone has any thoughts as to how I should proceed. I purchased a close to mint s4 that didnt read the sim card. It was cheap and I needed a screen for my s4 that I cracked. I tinkered with it a bit before tearing it down and other than no sim error the phone seemed to work flawless. When I did the tear down I noticed the internal screen housing was i337 stamped. The circuit board for the charging port was as well. The mainboard was stamped i337/m919 but the sim slot was stamped gt-19505. the imei on the sticker doesnt match whats in the settings. The sticker says tmobile but a search of phone info online shows the imei in the settings is from a i337. Does anyone know if this may be a possible flash thats wrong and the board was actually at&t? I'm aware you can change the meid easily and that may be it as well but im hoping maybe there is some software I can push to read if this is the case. I did order a sim slot to put in this evening and see if the slot is just bad. My old screen is not cracked bad and works without any issue so I would like to get it resolved and just resale it for parts on ebay is my plan if I can get the phone straightened out.
tldr-will flashing at&t rom brick the tmobile since the hardware is basically identical? Is there any way to tell if the wrong rom has been flashed to the board?
Booting into dl mode shows m919 and that knox hasnt been tripped. write protection enabled and emmc burst mode is enabled so I'm going to assume its not been flashed.
So I have a couple of SG3's. I wanted to give my wife my spare but the reason I wasn't using it was due to the dreaded sensitive power button issue.
I removed the power button from the mainboard carefully.
I popped the SIM card/SD card back in and used the the charge cable and the volume down/home button to get it to boot up. Success. It booted fine but no Sim card detected.
I know the SIM card works as it's the same SIM I use in my daily SG3 phone.
I hit up the internet and read some items that said, Factory reset the phone.. Did it.. No change. Put a piece of tape or foam on top of the SIM card to make it fit 'tighter', no change.
I ordered a new SIM/SD card module and replaced it on the mainboard.. No change.
The phone is running Cyanogen 5.1.1 12.1-20150527 Unofficial d2att with Baseband I747MVLLE8 and Kernal 3.4.107 Deathly Rebirth.
Any help would be greatly appreciated.
What is the phone's model number?
Did the phone detect a sim before flashing a custom rom?
The baseband doesn't look familiar to me.
audit13 said:
What is the phone's model number?
Did the phone detect a sim before flashing a custom rom?
The baseband doesn't look familiar to me.
Click to expand...
Click to collapse
The phone is I747 and yes. I used this phone with this rom fine a few months back till I started having the sensitive power button issue and I purchased a new to me S3. This phone has just sat for about 5 months. I pulled the power button, and inserted my SIM and it booted up fine but with no SIM detected.
androidjes said:
The phone is I747 and yes. I used this phone with this rom fine a few months back till I started having the sensitive power button issue and I purchased a new to me S3. This phone has just sat for about 5 months. I pulled the power button, and inserted my SIM and it booted up fine but with no SIM detected.
Click to expand...
Click to collapse
I'm starting to think it may be the main board for some reason. I'm tempted to buy a working used phone that is local for $40 but has a smashed up screen and pull the mainboard and pop it in my phone and trying it out. If I try this, is there anything else I need to be concerned about other than it being the same model and having a clean IMEI? I'm not concerned if it's locked because I can unlock it for free.
Just want to be clear. The first s3 (I'll refer to as number 1) was fine and developed a power button issue so you stopped using it. You then got another s3 (I'll refer to as number 2). You put number 1 away for a few months, removed the power button from number 1 and this is why it stopped detecting the SIM card. Is this correct?
audit13 said:
Just want to be clear. The first s3 (I'll refer to as number 1) was fine and developed a power button issue so you stopped using it. You then got another s3 (I'll refer to as number 2). You put number 1 away for a few months, removed the power button from number 1 and this is why it stopped detecting the SIM card. Is this correct?
Click to expand...
Click to collapse
Your numbering is correct. However, I am unsure if removing the power button is what caused the SIM card not being detected issue. I'm no engineer but I'm unsure how the two would be connected but it is a possibility.
How did you remove the power button? This is usually done by melting the three solder points on the board with a soldering iron and a solder sucker.
I would not expect the sim reader to be affected by removing the power button.
Does the sim work in phone 2?
Does the micro sd reader work? The sim reader and micro reader connect to the motherboard through a single connection..
audit13 said:
How did you remove the power button? This is usually done by melting the three solder points on the board with a soldering iron and a solder sucker.
I would not expect the sim reader to be affected by removing the power button.
Does the sim work in phone 2?
Does the micro sd reader work? The sim reader and micro reader connect to the motherboard through a single connection..
Click to expand...
Click to collapse
Don't cringe, but I followed a youtube video that shows how to 'scrape' the power button off.. I talked to the guys at my local cellphone fixit shop and they confirmed it does work but isn't the way they usually do it. (They use the soldering iron method).
I will test the SD card in Phone 1 and then I will test the phone 1 Sim/SD card module in phone 2 and get back to you. Hopefully tonight.
Thanks for the help
androidjes said:
Don't cringe, but I followed a youtube video that shows how to 'scrape' the power button off.. I talked to the guys at my local cellphone fixit shop and they confirmed it does work but isn't the way they usually do it. (They use the soldering iron method).
I will test the SD card in Phone 1 and then I will test the phone 1 Sim/SD card module in phone 2 and get back to you. Hopefully tonight.
Thanks for the help
Click to expand...
Click to collapse
Ok so I just performed the following steps.
Phone 1 booted up and is reading the SD card but still no SIM card detected.
Removed SD/SIM module from phone 2 and replaced it with the original Phone 1 module (the one I thought was defective so I ordered a new one) and SIM card and SD card both work flawlessly.
So I'm starting to believe it may be the mainboard at this point unless there's something else you want me to try,
excuse for butting in , but when you changed to phone #2 didnt you have to go to ur carrier to have them enter phone #2's IMEI? if so that might be why phone #1 no longer recognizes the sim. i.e. , phone #1's IMEI is no longer registered with carrier.
or ...... maybe i have it all wrong.
if so , please disregard all the above.
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mrrocketdog said:
excuse for butting in , but when you changed to phone #2 didnt you have to go to ur carrier to have them enter phone #2's IMEI? if so that might be why phone #1 no longer recognizes the sim. i.e. , phone #1's IMEI is no longer registered with carrier.
or ...... maybe i have it all wrong.
if so , please disregard all the above.
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Click to expand...
Click to collapse
Curious to know if this is indeed the case although I don't believe so. I didn't have to tell my carrier when I switched from Phone 1 to Phone 2. I just popped in my SIM card from phone 1 to phone 2, and it told me it was locked and I entered in the unlock code and the phone has worked.
ok then. must not be the case.:good:
srry , have no other ideas.
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Hi all, I have a Samsung S3 GT9300 with a damaged board, phone won't connect or charge. I bought a used board, owner said board is OK and unlocked, phone connects, charge and works (wireless OK) but when I put the SIM in the phone keeps showing a message: No SIM card with the no SIM card symbol, doesn't ask for pin number either. Strange thing is that the network signal is normal. I have replaced the SIM carrier but it's the same. I don't know what I am missing here and need some help.
I'll put some pics of the message soon.
Thanks in advance.