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Bought a nearly new galaxy tab2 from the internet, but the touchscreen seems not to be working.
Any idea what that can be. Could it be something with a ROM, or does it need to go to Samsung.
OOge said:
Bought a nearly new galaxy tab2 from the internet, but the touchscreen seems not to be working.
Any idea what that can be. Could it be something with a ROM, or does it need to go to Samsung.
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Click to collapse
It could be failed hardware, a bad cable, or perhaps a problem with the touchscreen controller chip.
If you can capture the boot messages using 'dmesg' over ADB, there may be info there that could help determine which.
If it's under warranty, return it to the seller for a refund or replacement, else just keep searching for a solution :\
OOge said:
Bought a nearly new galaxy tab2 from the internet, but the touchscreen seems not to be working.
Any idea what that can be. Could it be something with a ROM, or does it need to go to Samsung.
Click to expand...
Click to collapse
When you say the touchscreen "seems" to not be working, what exactly do you mean?
Does it not work AT ALL, or is it just not very responsive to your touch, i.e. scrolling is slow and choppy and/or pinch to zoom is flaky?
Because I have noticed certain apps do not work well on my 10.1 when it comes to the touchscreen, when the tablet is under heavy load. Are you experiencing this more with certain apps, like Chrome and/or Samsung Keyboard? If that's what is happening, I can help.
I use a custom firmware, so not possible to return to samsung.
As it is stuck on the install screen, I can't enable debug for ADB.
Or is it auto enabled on a custom rom.
What has the highest chance of failing. Logic board or digitizer (as the cable is not sold seperatly)
I have a Tab 2 P5110, I bought it as faulty as the touchscreen is not working. Otherwise it's alive and responding to the buttons.
After reading several topics it looks like it is a bug that can only be fixed by physically replacing the digitizer panel.
Of course I'd prefer a software solution but so far what I've found wouldn't work on this model due to HW difference.
Can someone confirm that?
Thanks.
I've read a few threads on the screen Flickering and there doesn't seem to be any resolution .
I'm on my 3rd tablet now (thanks best buy accident damage warranty!) And this one is flickering worse lately than ever. I updated to the latest firmware, yesterday only to boot up to horrible bouts of flickering during the setup screens.
The odd thing is, there seem to be no consistency to it. Some days it's so had I can't even use the thing, other days it doesn't happen at all. I use the tablet every day for notes or PDF viewing. I've used it with no magnetic cover (totally naked) and with the cover.. doesn't seem to change the occurrences.
I've turned overlays on/off force gpu render on/off.. nothing seems to fix it. Sometimes changing the overlay will reduce the flickering other times it doesn't affect it at all.
I hate to say it, but if I can't resolve it, I'm going to be forced to move to the surface 3.
I'm an electrical engineer and I've done as much trouble shooting as I can think to do.. but I've come up empty handed.
Anyone else have these problems? Has anyone found a definitive fix?
I sent mine back 3 times. The first was a reset. Thanks for wasting my time. The second was a motherboard and that didn’t do it. The third time they did a motherboard, digitizer, and usb port. It's finally stable and back to normal. After 5 trips back, the BB warranty triggers a new unit. Check if it triggers a refund.
I get it occasionally, so far I'm able to resolve it by booting into custom recovery (TWRP) and clearing dalvic to allow all apps to rebuild. Sometimes this resolves it for a few days, sometimes a couple of weeks. Its a repeatable "fix" that makes me question if the issue is related to memory or trim or something like that. Kind of reminds me of how with the first generation nexus 7s one would see slow downs after a while and filing storage with fake data then deleting it would improve performance for a while.
I'm definitely not a tender user of the device. I go back and forth between multiple ROM's and kernels on a daily basis testing what is testable, and unfortunately also what is not. Anyway, even though mine was bought as refurbished on eBay, I have never had any issues like the ones you describe. More specifically, I have never had any issues what-so-ever, that was not created due to my own ignorance. To me the device seems indestructible.
Besides, I would hate to be in the place of my device, or I would definitely have turned schizophrenic. Should I feel bad about pushing it through all this?
Because we're trying to figure out if it's related to a specific device type, which one do you have? P900, 905, 907A or another?
ShadowLea said:
Because we're trying to figure out if it's related to a specific device type, which one do you have? P900, 905, 907A or another?
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P900 wifi. Us version bought at best buy.
Today the tablet has been rock solid, I have literally done nothing between when it was flickering like mad and now.
I wonder if it might be related to some kid of data transfer. either over wifi, or when data is written or read from storage or SD card. I've take then SD card out to eliminate that as the problem.
Mine was P900 from BB
Issue lies with the screen.
This happened with me I sent it back to Samsung, 3 times. They seem to have finally got it right. They replaced the battery and then the display screen. Now it appears to be working I will let you know after a month if it is still good. They also told me that they will not replace the device even though I bought it and the issue was right from the start. Not even 6 months old. When working the device is excellent.
Ah, so now we know for sure the battery is replaceable. That's good news. Maybe someday our batteries will no longer hold a charge and we can replace it. Now for a good video on tear down and what tools to use to do that and where to get a replacement battery. I know it's early for most of us but someday......we will have to replace that battery. I'm one of those that keep my toys (computers/laptops/tablets/phones,) for many years.
Mine is running like new since last service. Getting the BB Geek Squad warranty has paid for itself already. I get 2 years on anything over $500.
Mine is a p900. I purchased from samsung website. Mine has been doing it fresh out of box. So bummed.
Ive had my 12.2 since march and it recently started flickering. It seems to tuen of the screen for a millisecond especially when lots of refreshes happen. Like scrolling a pdf. A few days back it was bad. Now it has gotten better and I havent noticed anything.
{Diemex} said:
Ive had my 12.2 since march and it recently started flickering. It seems to tuen of the screen for a millisecond especially when lots of refreshes happen. Like scrolling a pdf. A few days back it was bad. Now it has gotten better and I havent noticed anything.
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Click to collapse
My P900 has just begun flickering exactly as you describe. So I should just be patient and hope it goes away by itself?
I'm flickering again. Turning the screen brighter is what triggers it for me. Returning to stock just to get it back and have it flicker again to hit the magic 5 returns may be what I have to do.
https://youtu.be/CvxbVft69Kg
I just followed this guide. Its been a week now, not had any flickering since I did it.
Manya3084 said:
I just followed this guide. Its been a week now, not had any flickering since I did it.
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Lifting the motherboard only temporary close the gaps of cracked battery connector. The permanent fix need to do: re solder the battery connector.
Look closely under magnified glass or microscope , you'll see the cracked solders. You can test by pushing the connector slightly, a bad one will move easily or lift off from its solder joints.
This video was removed from the poster after I pointed out his guessing solution. Flickering screen has nothing to do with LCD connector on the motherboard.
Lifting mother board actually you're applying pressure on the battery connector from rear cover.
I have had my P900 sent to Samsung service twice without having the screen flicker fixed. I thought this was a known problem and that Samsung themselves should be aware of it? Maybe I should supply some XDA links next time...
Skickat från min SM-P900 via Tapatalk
bluebirch said:
I have had my P900 sent to Samsung service twice without having the screen flicker fixed. I thought this was a known problem and that Samsung themselves should be aware of it? Maybe I should supply some XDA links next time...
Skickat från min SM-P900 via Tapatalk
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Depend on where you send for service, they know how to fix it now. Service Centers actually are contractors provide services for Samsung and others, the fact that most people don't know.
http://forum.xda-developers.com/showpost.php?p=59573206&postcount=100
It Works. Battery connector replaced. Smoooooth
After 2 visits to Samsung , my unit finally works fine.
Motherboard and LCD were changed first time. But issue persisted.
Second time, battery connector was replaced. Since then it has worked very very smoothly.
Beut said:
Depend on where you send for service, they know how to fix it now. Service Centers actually are contractors provide services for Samsung and others, the fact that most people don't know.
http://forum.xda-developers.com/showpost.php?p=59573206&postcount=100
It Works. Battery connector replaced. Smoooooth
After 2 visits to Samsung , my unit finally works fine.
Motherboard and LCD were changed first time. But issue persisted.
Second time, battery connector was replaced. Since then it has worked very very smoothly.
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Thanks, missed that other thread. Next time, I'll send them an en explicit request to replace the battery comnector, and refer to those two threads.
Stefan
Tapatalked on some kind of Samsung tablet
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.
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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.
Hello guys. Yesterday I bought a Samsung Galaxy S6, the "normal" S6. I bought it from a guy, tested it 2 times everything fine but today I discovered that the rotation is not working properly. When i dial *#0*# and test the sensors, all pass but the gyro test fails. The phone doesn't have warranty, and I wanna know guys if you also got this problem and if you fixed it. If not, I could replace the gyroscope/accelerometer or what the heck is not working in a GSM service?
A friend told me that if the sensors are damaged then the phone can't be repaired. Please help me if you can. ?
PS: Sorry if I typed wrong.
If your friend doesn't repair phones for a living, then perhaps you should ask someone who does if it's repairable....
Sent from my SM-G920W8 using Tapatalk
Changing rom doesn't solve it? I haven't tried this yet..
It is possible that it could be a software glitch. I had the issue with my ex-S6 Edge, I got it fixed by telling Samsung to reinstall the firmware for me.
I now have an S6, I used Samsung Smart Switch yesterday to reinstall the firmware on my phone. It fixed some issues I had along with less heat and better battery runtime. I suggest you do the same, it's worth a try.
Just be sure to charge your phone to 100% and use *only* the original USB cable from Samsung. You could end up with a bricked phone if you use third party cables, other users have ended up with such fate.
DaryllSwer said:
It is possible that it could be a software glitch. I had the issue with my ex-S6 Edge, I got it fixed by telling Samsung to reinstall the firmware for me.
I now have an S6, I used Samsung Smart Switch yesterday to reinstall the firmware on my phone. It fixed some issues I had along with less heat and better battery runtime. I suggest you do the same, it's worth a try.
Just be sure to charge your phone to 100% and use *only* the original USB cable from Samsung. You could end up with a bricked phone if you use third party cables, other users have ended up with such fate.
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I have the original cable, but if I use it there are no chances of bricking it right? I did 3 factory resets already, and I cand replace the sensor with problems, it will cost me pretty much. I also have something with the camera. It looks like it takes whiter pictures, I think. I'm going tomorrow in a store to see another S6, to see if the cameras are the same.
velea18 said:
I have the original cable, but if I use it there are no chances of bricking it right? I did 3 factory resets already, and I cand replace the sensor with problems, it will cost me pretty much. I also have something with the camera. It looks like it takes whiter pictures, I think. I'm going tomorrow in a store to see another S6, to see if the cameras are the same.
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Click to collapse
If your phone isn't rooted, if you haven't tripped KNOX. Then you should be good to use Samsung Smart Switch to reinstall the firmware. I used it just about four days ago to reinstall the firmware on my S6. Solved many problems for me. It's worth a shot before replacing the hardware.
Owned the phone for about a month now. Phone was working perfectly fine for the majority of this time. I use 2 different sims and they were both working smoothly until recently.
A few days ago, I woke up and the phone wouldn't recognize the Sim cards anymore. I took out the Sim tray, cleaned the Sim cards and the tray as thoroughly as I could and they both started working again. A few days later, I restarted my phone and both of the Sims stopped working again.
This time nothing I would do would solve the matter, so for the next few days the phone wouldn't recognize either Sim. I have unlocked the bootloader and rooted, factory reset it and updated it none of which seems to solve the issue.
I use this phone for gaming so last night to my surprise one of the Sims started working (sim was in for a couple of days) and all connectivity was perfectly fine - I tried putting in my other Sim as well but again the phone wouldn't recognize them anymore. Tried putting in only one card on the Sim 1 slot but it made no difference. I don't understand what the issue could be.
Do you have a converted CN version or did you buy a global version? (just curious, as far as I know only CN -> WW versions faced this issue and I would like to know if this is a coincidence or an issue with these versions. But I could be wrong as well)
Nevertheless I would make use of warranty and send it back to Asus to get it repaired.
Yeah it's CN version > WW ROM. It's absurd how randomly it was hit with this issue. Again, the phone was reading a sim card perfectly fine out of the blue last night, then when I took out the Sim tray to insert another card, went back to square one and wouldn't recognize either.
I know.. If you had searched this forum or the rog reddit you would have noticed there are multiple topics like yours and all people explained the very same. Seems totally random.. sometimes it works, sometimes not. Unfortunately no one was ever able to post an accurate answer of why this is the case or how to fix it. At least there is none here, on reddit or the zentalk forums.
Since all device so far were CN -> WW version I don't know any successful case. Asus mostly rejects the support and redirects people to their sellers but those mostly refuse to do something. (they probably know that issue and it's cheaper to do nothing)
I wish you best of luck. Maybe you could try to contact Asus and report the outcome so we finally have a documented successful repair.
Edit: as said, that's only my knowledge, maybe there is a fix and someone found a way but they either didn't publish it or they posted it in a not so well known forum.
I wonder if the connections that touch the SIM are poorly designed. If it is such a widespread issue that randomly seems to come and go, it could be similar to the issue I had with the Kunai 3.
The pins on the side are designed to give a little when sliding the controller off and on the mount or charger. After moving them between the mount and charger twice, some pins fell off and others never popped back into place so they could make a connection. It turns out they never secured the pins well enough to handle it.
Hello, I had a similar issue.
My sim-cards wouldnt be recognized, sometimes only one of them, sometimes both. Additionally, my fingerprint-sensor wasnt working too. By checking pictures of a disassembled phone I could locate the problem inside. It has a connector on the lower end of the phone, which is for sim and FP-sensor. I can definitely and easily come loose.
Quick and dirty fix for me, was pressing with controlled but quite some force on the lower end of the LED-Rog logo while the phone laying flat on the table. I used my thumb, pushed and restarted the phone to check. Didnt work, pushed a bit harder and restarted again until it worked. The back glass has some flex to it, to make it possible to push the connector back in. Still, be careful to not break it, if you try it yourself.
When I found that solution, I've sent it in on warranty for proper fixing with this Information to ASUS. They replaced allegedly the mainboard. But I actually think, they just fixed the connector in place, because bending the phone to a certain degree "unfixed" it in my case again. I dont know, if its the same issue you have, but if it is, hope it helps everyone.
r0me5 said:
Hello, I had a similar issue.
My sim-cards wouldnt be recognized, sometimes only one of them, sometimes both. Additionally, my fingerprint-sensor wasnt working too. By checking pictures of a disassembled phone I could locate the problem inside. It has a connector on the lower end of the phone, which is for sim and FP-sensor. I can definitely and easily come loose.
Quick and dirty fix for me, was pressing with controlled but quite some force on the lower end of the LED-Rog logo while the phone laying flat on the table. I used my thumb, pushed and restarted the phone to check. Didnt work, pushed a bit harder and restarted again until it worked. The back glass has some flex to it, to make it possible to push the connector back in. Still, be careful to not break it, if you try it yourself.
When I found that solution, I've sent it in on warranty for proper fixing with this Information to ASUS. They replaced allegedly the mainboard. But I actually think, they just fixed the connector in place, because bending the phone to a certain degree "unfixed" it in my case again. I dont know, if its the same issue you have, but if it is, hope it helps everyone.
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Click to collapse
Good tip and glad it worked - this could help a few out there. Perhaps ASUS should have included some instructions explaining how to press/bend the device back in order when it happens ...
I had the same issue and quickly found a fix. I bought a OnePlus 9 Pro and relegated this glitchy piece of junk to my desk drawer. Good riddance.
nickdagriff said:
I had the same issue and quickly found a fix. I bought a OnePlus 9 Pro and relegated this glitchy piece of junk to my desk drawer. Good riddance.
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Click to collapse
Paying over $2,000 for a OnePlus 9 Pro seems like an expensive solution, but I am glad it worked out for you. Best of luck over there.
r0me5 said:
Hello, I had a similar issue.
My sim-cards wouldnt be recognized, sometimes only one of them, sometimes both. Additionally, my fingerprint-sensor wasnt working too. By checking pictures of a disassembled phone I could locate the problem inside. It has a connector on the lower end of the phone, which is for sim and FP-sensor. I can definitely and easily come loose.
Quick and dirty fix for me, was pressing with controlled but quite some force on the lower end of the LED-Rog logo while the phone laying flat on the table. I used my thumb, pushed and restarted the phone to check. Didnt work, pushed a bit harder and restarted again until it worked. The back glass has some flex to it, to make it possible to push the connector back in. Still, be careful to not break it, if you try it yourself.
When I found that solution, I've sent it in on warranty for proper fixing with this Information to ASUS. They replaced allegedly the mainboard. But I actually think, they just fixed the connector in place, because bending the phone to a certain degree "unfixed" it in my case again. I dont know, if its the same issue you have, but if it is, hope it helps everyone.
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Click to collapse
Works like a charm here! Congratz!
Omg worked here too, now I have a Poco F3 AND a revived ROG Phone 5...
.
You are the mvp. I love this phone and using it for almost a year. Suddenly sim no longer detected. I tried everything, unlocked bootloader, update firmware. Hour and hours of trying to revive it. I even called Asus and they said to call the Chinese warranty support. Then finally came across this thread. Pressed down hard on the lower end of the logo of the phone on its back. Restarted and now it's detecting the sim again. Thank you so much