Database Info

[Q] HELP! P900 WiFi Problem

Hi All, I have P900 which I bought about 5 months now, and all the sudden the WiFi is not working as it keep switching on and off automatically (problem which similar to S4 WiFi) and off all the time. I have been doing factory reset, and flashing roms. None of them works. Now I would like to try flashing the modem module just like S4 fix, but I have no idea on where to find those files. I would really appreciate if someone could give me some lead on this, or any other ways for those who have similar problems. Please help.

Same problem (SM-P905V)
I see that this thread is really old but I am having the same problem and I can not find anything on the internet to fix this problem. I bought a refurbished note pro from amazon last September (so it is out of warranty). This is my last ditch effort to try and fix this on my own. If I can't get any help then I will just have to send it to Samsung to try and repair it.
My wifi worked just fine for all this time then about a month ago I was having problems with the bluetooth not connecting. I ignored it at the time as I was going to work on it at a later date. Then about a day or two later it started working again.
Now about a week and a half ago my wifi and bluetooth stopped working. I have factory reset but still nothing. I can get the wifi to even turn on any more. Occasionally I can get the bluetooth to work for a minute or so but 99% of the time neither one works.
I hope that someone can help me with this and I can get it resolved without having to spend a fortune.
PS If no fix then what do you suggest as a replacement? I love all the features of the note pro. I like the stylist, the screen resolution, and the multi-window features. I need a big screen for my business. I use it for a slide show at events.

moparcrazy72 said:
I hope that someone can help me with this and I can get it resolved without having to spend a fortune.
PS If no fix then what do you suggest as a replacement? I love all the features of the note pro. I like the stylist, the screen resolution, and the multi-window features. I need a big screen for my business. I use it for a slide show at events.
Click to expand...
Click to collapse
Bluetooth and Wifi have many components on mainboard, repair them is beyond anyone including professionals.
My suggestion is looking for a Note Pro with broken display or woking mainboard only on Ebay; it may cost around $120, more or less depending on luck.
Take out the mainboard is quite easy, only 3 screws at two speakers, I can swap the mainboard within 10 minutes.
http://www.ebay.com/itm/401145234611?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
Any SM-P900 ( wifi ) or LTE ( 905, 907 ) mainboard will fit to your existing tablet except rear camera ( LTE rear camera won't work with Wifi model mainboard ).

Since the thread is four years old, this is not really a follow up, but just a note in case anyone is having similar issues. Actually bluetooth + wifi repair on samsung tablets are possible for end user - if you are semi-lucky and broken components are not hard to replace items such as ICs. But first, be sure to rule out any OS level issue by flashing stock rom on the tablet. Then if the issue persist, then if you can locate service manual for the tablet in question, it comes with level 3 step by step instruction (and board view of components) on how to troubleshoot bluetooth + wifi hardware issues. Often the broken component is not the major IC itself, but discrete components such as capacitor, filter or resistor. In some cases issue may be fixed just by reflowing the IC itself with hot air rework station. So there is indeed good chance you can fix hardware issue with a bit of work and some cheap hot air rework station (such as 858D sold on ebay for $30 including shipping).
Ok the worst scenario is that wifi ic is bad and need to be replaced. Good news is that Samsung uses popular wifi ic, such as broadcom chip. And although it's a bga chip, it's quite small, making replacement using hot air gun possible. So will a lilttle bit of skill and luck, it's definitely possible to repair samsung phones/tablets with broken wifi hardware.

Wifi issues and Q about flashing stock ROM

Hi, I bought a used Verizon Note Pro 12.2 SM-P905V and when I got it, noticed that the wifi is very flaky. Initially, it connected to my router fine but took 9 hours to load 120 apps when I signed in to Play using my normal Google account. So I did a factory reset, and then it wouldn't see my router at all. Restart router, factory reset device, no dice.
In the notification shade, wifi icon is always green as if it's on, but when I go into settings, the toggle is off. When I slide it to on, it turns gray and after a minute or so goes back to off. Multiple hard resets, still the same issue. Occasionally, it will "see" the routers, but this only lasts for a few seconds and then they are gone.
So I decided to flash the firmware. I did not complete another factory restore before I embarked on this, but had only just gone through the initial language screens and signed in on the tablet with a brand new Gmail account that had nothing on it. So I downloaded official 5.1.1 ROM from Sammobile, installed device drivers, installed Odin, (followed some great instructions found on XDA, thanks), got the tablet into download mode, connected to laptop and Odin on my laptop showed connection was live and it began to do it's thing. So I left it alone for 30 minutes and when I came back, Odin read "all done!" (or something similar) highlighted in green , and the tablet had restarted, so I assumed all is good.
However, I expected that the flash process would have wiped the setup I had begun on the tablet, but it did not. And the wifi issue still exists. Looks to me like nothing has changed. So two questions for you:
1) Does this mean that the flash did not happen correctly?
2) Do you have any suggestions on how I can fix this wifi issue? (LTE works fine but I don't want to eat up all that expensive data.)
Thanks for any help!

Wifi circuit has many components on mainboard and I believe it's beyond abilities of most users even professionals as you cannot find components and schematic to fix them.
Your best source is looking for this tablet with a broken LCD like this one:
http://www.ebay.com/itm/172145691764?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
http://www.ebay.com/itm/Samsung-Gal...069075?hash=item1a15927393:g:D8MAAOSwbYZXZKDb
If you don't have the need to LTE connection, Note Pro wifi mainboard SM-P900 also fit but you need rear camera for SM-P900 as rear camera of LTE won't work in Wif mainboard.
Any LTE Note Pro 12.2 like P907T( Tmobile) P907A ( AT&T ) mainboard will fit to P905V as they are exactly the same mainboard, except firmware, bootloader and software loaded into it.
I swapped a SM-P907A mainboard to a SM-P905V tablet, it works as an AT&T tablet because the software is for AT&T.

I purchased a verizon note pro 12.2 SM-P905V refurbished from groupon last October. For the last few months the wifi on the tablet has been very flaky. I have a number of devices and only this one frequently drops connection. I never upgraded from kitkat I and was hoping that this issue was software related. Seeing that moransw is experiencing the same problem with this same model but is trying to get back to sock kitkat gives me concern that a software update will not resolve the problem. The other problem I've been having lately is that the device no longer recognizes the stock charger, and will now only charge painfully slow. I've tried a different charge cable from a samsung s6 to no avail. Is the SM-P905V a lemon?

You should use this one to test your charger and usb cable
http://m.ebay.com/sch/i.html?_nkw=u....Xusb+voltage+current&sqp=usb+voltage+current
If you're using correct cable and charger, current should be 1.7 A and voltage should be 5.3 V
Test with known working cable and charger, if nothing is different you should consider to buy new usb flex charging port, around $10.
These basic steps you should do first as nobody can give exactly an answer with many unknowns. It happens to many used tablets, not just this model.
These basic troubleshootings are easy done for simple problem of bad cable, charger or USB port
Try them first then post your results if you need more help for further steps

moransw said:
However, I expected that the flash process would have wiped the setup I had begun on the tablet, but it did not. And the wifi issue still exists. Looks to me like nothing has changed. So two questions for you:
1) Does this mean that the flash did not happen correctly?
2) Do you have any suggestions on how I can fix this wifi issue? (LTE works fine but I don't want to eat up all that expensive data.)
Thanks for any help!
Click to expand...
Click to collapse
1) I am using stock kitkat rooted and I was experiencing the same issue
2) I found this thread regarding our tablet that seems to suggest a bug with wifi if you are using a Bluetooth device
http://forum.xda-developers.com/galaxy-note-pro-12/help/wifi-disconnects-bluetooth-device-t2851406
I was streaming audio through bluetooth to my home surround system, I disabled the bluetooth radio and I haven't had an issue with wifi since. I now use chromcast to stream audio through my surround sound.

Bluetooth issues

I pretty much love this phone. It would be my ideal device if it had double-tap-to-wake. As it is, I could almost learn to live with using the fingerprint scanner (which I avoid using on all of my other phones) to unlock, but I finally encountered a deal breaker.
I have had all kinds of bluetooth issues. I have a lot of connected devices and I've been encountering the following:
Gear S3 constantly disconnects (even when it's really close to the phone)
Fitbit will not sync
Car Stereo Bluetooth profile deleted itself
AirPods break up, have static, or completely cut out
Here's the thing. I went back to my V20 and I don't have any of these issues. The Fitbit always syncs, the AirPods work flawlessly, the Gear S3 NEVER disconnects, and my car stereo has never disconnected. I have to believe it's a bluetooth stack issue. Perhaps the proprietary processor is to blame. But with all of the bluetooth devices I use on a daily basis, I can't live with this.
I really want to keep the phone, but I think I'm going to have to return it. That sucks because there's nothing else really like it on the market for me. But after all of the testing I've done, I can't draw any other conclusion. Maybe a software update might fix it in the future, but I can't take that chance.
I'm sure some of you will chime in and say "I'm not having any of these issues". That's great. I'm fairly certain you don't have the exact same devices/combination I've listed here. The fact is, my currently daily setup does not mesh with this phone. I still have my Mate 8, but I haven't tested this combination of devices with it yet.

I also have a big issue with this phone's Bluetooth. I can't pair it with a 2014 Pajero. Any other phone works perfect when paired with the car but this one cannot even pair. I always get "pairing failed".
I tried every oprtion and pairing application and still no success.
I know mate 9 has bluetooth 4.2 but it should be backward compatible.
Anyone has a solution or similar issue?

I wonder what firmware version your mate is on.
I'm running MHA-L29C432B138 and I have no problems with my Gear S3, nor with my Mazda bluetooth hookup.

Yeap, latest B138 version.
Gear S3 is fine. Only issue is the car connection

B138 here.
Won't connect to my 451 Bosch Highline car radio (they can't even see each other).
Connects fine to my laptops (Win & MacOS), BT speakers and Xiaomi Roidmi.
Sent from my MHA-L29 using XDA Labs

duraaraa said:
I wonder what firmware version your mate is on.
I'm running MHA-L29C432B138 and I have no problems with my Gear S3, nor with my Mazda bluetooth hookup.
Click to expand...
Click to collapse
I am on MHA-L29C567B138
I have the U.S. unlocked model. So, unless there's something specific about the firmware on that model, I don't know what to tell you. I have tested this repeatedly with all of my Bluetooth devices. Nothing works as it should, especially compared to my other phones. It would be interesting to see if I have the same issues on the Europe firmware, but I'm not flashing it to find out.

This bluetooth seems to be issue with this phone, does anyone know if this is something huewei is working on to fix or its an android issue ?

I hate to be the guy that says "mine works blah blah blah" but I've got multiple devices connected through Bluetooth and have yet to have an issue on any of them. 2 Ford vehicles running Android auto, 3 Bluetooth speakers and a set of Bluetooth headphones.
With that said, I wonder if your actual device is faulty. Has anyone with the issues done a factory reset? If so I'd be contacting Huawei support.
Sent from my MHA-L29 using Tapatalk

I have same issue as describe. My tought is mate 9 do not accept Bluetooth multipoint connection... 2 devices with same profil cannot be connected in same time
Envoyé de mon MHA-L29 en utilisant Tapatalk

I am wondering if the manufacturer is aware of the issue or not but to me it seems more of a Android nogut issue than anything else

I have the same issue. The Mate 9 takes about 3 minutes to pair with my car where my LGV10 automatically did it within seconds. It also does not seem capable of handling being paired with multiple Bluetooth devices at the same time. It has to be disconnected from one and wait to pair with the next one. For cars, I have tried it with both a Tesla and a Jeep GC and the I have the same problem.

greyhulk said:
I pretty much love this phone. It would be my ideal device if it had double-tap-to-wake. As it is, I could almost learn to live with using the fingerprint scanner (which I avoid using on all of my other phones) to unlock, but I finally encountered a deal breaker.
I have had all kinds of bluetooth issues. I have a lot of connected devices and I've been encountering the following:
Gear S3 constantly disconnects (even when it's really close to the phone)
Fitbit will not sync
Car Stereo Bluetooth profile deleted itself
AirPods break up, have static, or completely cut out
Here's the thing. I went back to my V20 and I don't have any of these issues. The Fitbit always syncs, the AirPods work flawlessly, the Gear S3 NEVER disconnects, and my car stereo has never disconnected. I have to believe it's a bluetooth stack issue. Perhaps the proprietary processor is to blame. But with all of the bluetooth devices I use on a daily basis, I can't live with this.
I really want to keep the phone, but I think I'm going to have to return it. That sucks because there's nothing else really like it on the market for me. But after all of the testing I've done, I can't draw any other conclusion. Maybe a software update might fix it in the future, but I can't take that chance.
I'm sure some of you will chime in and say "I'm not having any of these issues". That's great. I'm fairly certain you don't have the exact same devices/combination I've listed here. The fact is, my currently daily setup does not mesh with this phone. I still have my Mate 8, but I haven't tested this combination of devices with it yet.
Click to expand...
Click to collapse
It's interesting and frustrating how different people have different experiences.
As you'll see from my sig area, I am on US version, with 183 firmware. Interesting too, I had first tried a V20, and left it because of BT issues. As you are probably expecting to hear given my intro statement, I am not having BT issues. But, I am on different phone and firmware from most posts here.
I've only had my phone a couple weeks. When I received it it was on 138, and the GPS didn't work at all. Was about to box it back up and send back, but then checked, and had the update. After update, it's been great for me so far.
I'm not sure how different the 138 is from my US phone and yours...but a common thread for problems seems to be (based on this thread) is 138.

NFC issue on my Mate 8 (L29C432B560)

Hello,
I have an issue with NFC on my Mate 8. Indeed, I tried to read the informations of a NFC credit card and it's very very very hard to detect the card (I have to push the card on the NFC antenna with my fingers and trying multiple positions before success). I have no issue with the same card and my old Nexus 5.
So NFC is working but it's like the NFC antenna power is too low.
I'm on L29C432B560 (EMUI 5, Nougat), never unlocked booterloader, never tried NFC on EMUI 4 and 4.1.
Any way to fix this?
My 2 years warranty will expire in one month so if it's an hardware issue I can always use it.

Surian said:
Hello,
I have an issue with NFC on my Mate 8. Indeed, I tried to read the informations of a NFC credit card and it's very very very hard to detect the card (I have to push the card on the NFC antenna with my fingers and trying multiple positions before success). I have no issue with the same card and my old Nexus 5.
So NFC is working but it's like the NFC antenna power is too low.
I'm on L29C432B560 (EMUI 5, Nougat), never unlocked booterloader, never tried NFC on EMUI 4 and 4.1.
Any way to fix this?
My 2 years warranty will expire in one month so if it's an hardware issue I can always use it.
Click to expand...
Click to collapse
Is is possible to draw a simple photo of the angle & location? What did you mean by "push the card on the NFC antenna with my fingers?"
--
Here's my sad experience:
kibrito said:
NFC antenna is placed on upper side of the back - above the camera. Use that area to touch when using NFC for file transfer, not the whole back of the phone.
Click to expand...
Click to collapse
OK...
I tried back-to-back, 'top to top'... Is there a specific angle? Maybe someone who has had success can draw a simple picture?
I have an L29C636B321 (recently updgraded to L29C636B330) ~ when 'back-to-backed' with another Mate 8 L29C185B560 (after many trials) - the L29C185560 seems to activate it's NFC as seeing a 'Tag' without information. My phone, the L29C636B330 did not do anything... nada... really, nothing.
It is becoming annoying now. I've had this phone for close to a year but never thought of using NFC until I bought an LG Washer with "Tag On". Of course, my Mate 8 was not able to read the Tag?? So I had to test.
Today, my L29C636B330 was officially upgraded to L29C636B561 Nougat. NFC and Huawei Beam turned on off course...
NFC back-to-back with my Lumia 1520 Windows Phone... not working.
NFC many positions with a Samsung Galaxy S4 (SBeam/NFC On) - nothing. Sharing a photo...
So is this phone broken from the get go?
It the firmware responsible for this?
Is there a hardware malfunction?
How do I get NFC to work???
When I used an App to detect NFC. It says, NFC is enabled but "no tag detected"?
HELP!!!!

See images here "Where is this NFC Antenna?"
https://forum.xda-developers.com/mate-8/help/nfc-t3286848/page2#post71873419

Hi,
I recently bought Mate 8 and I got the NFC issue as you describe.
I came to my mind when reading your post that you said "push the card on...".
Here is my solution:
1. Disassemble the phone, two screw off and open the rear cover.
2. You can see metal spring contacts on the top of the phone to connect the main board to the rear cover.
3. Raise the metal contacts to easily touch the rea cover.
4. Assemble back the rear cover.
Thanks

Bluetooth not working

Not sure if this is just my phone but bluetooth has not been working the last update of 7.1.2 and Android O the most recent version. When I toggle bluetooth it does not activate and i have tried clearing out the cache. Not sure if this is a software issue or possible related to hardware. I did have a good drop with my phone although nothing on the exterior appears damaged. Not sure if anyone else is experiencing the same thing.

Just RMAing the phone. It appears that it is only my phone doing it. Actually Google's customer service is really good. I'm glad I bought from them.
I had a Galaxy S4 from Samsung in 2013 and the battery ended up swelling and I called them for a replacement which they would not replace, but would thoughtfully sell me a new battery. Then they lost $5.3 billion from their Note 7 recall due to the battery and I was very happy and laughed.

Was this just the phone audio in your car by chance? I have a similar issue and have an open case with google about it.

marc.ientilucci said:
Was this just the phone audio in your car by chance? I have a similar issue and have an open case with google about it.
Click to expand...
Click to collapse
No it's definitely the phone. I have my Nexus 5x right now on 8.0 and it's working fine. Nothing wrong with the software.
I use Android auto as well and it's working fine. There's something wrong with the hardware component in the phone most likely. I have a 2017 Honda Civic
Did an RMA and sending it out.

mikeprius said:
No it's definitely the phone. I have my Nexus 5x right now on 8.0 and it's working fine. Nothing wrong with the software.
I use Android auto as well and it's working fine. There's something wrong with the hardware component in the phone most likely. I have a 2017 Honda Civic
Did an RMA and sending it out.
Click to expand...
Click to collapse
sorry - let me clarify my question. Was bluetooth media working and just not phone calls over bluetooth? I have a 2017 honda civic as well (LX version so a dumb head unit) and only having bluetooth phone call issues. I can play spotify and other stuff like youtube just fine.

marc.ientilucci said:
sorry - let me clarify my question. Was bluetooth media working and just not phone calls over bluetooth? I have a 2017 honda civic as well (LX version so a dumb head unit) and only having bluetooth phone call issues. I can play spotify and other stuff like youtube just fine.
Click to expand...
Click to collapse
No. Bluetooth would not activate at all so nothing worked. When i toggled the switch it would not turn on and scan for bluetooth. It appears that my situation was much significant as nothing worked. My replacement should be here tommorow. For your stock rooted set up did you just boot into TWRP then flash the latest SU ? Lately I've been running stock, so I don't know what the most recent form to root is for 8.0
Last time I rooted was like April or May of this year, but I just booted the TWRP image, flash TWRP, then flash SU

I've been stock rooted for some time but for the 8.0 update I rooted with SuperSU SRS3 via TWRP. Google had me actually grab a bug report and shoot it over to them along with information about the bluetooth radio manufacture of the car. I am cool with continuing to help them out. anyway, thanks for your feedback and i hope the new one works!

Got my new pixel replacement. It was the phone, I'm on the latest 7.1.2 update and it's working fine. The refurb looks brand new, you can tell it's a refurb by the charging port, but the rest of the phone is virtually new. No scratches on the glass or scuffs on the metal body. Compared to the current pixel I have with multiple long scratches along the front glass screen, even though it's a refurb its still in much better condition than my current Pixel.
I noticed my night light is super orange the screen is compared to my current Pixel. I think this is an issue related to earlier batches of the Pixel. It's just very orange with the night light but given the condition my current pixel is in, I'll still take it over my current one.