Hi,
My Note Pro 12.2 P900 64gb is now stuck on the samsung screen of booting up and I am wondering if anyone can help me figure out what to do next.
I was experiencing the flickering issue for the last two weeks which got progressively worse and eventually caused random rebooting. One time last week it started booting slower and then it wiped out some widgets on my start screen and the apps in touchwiz but most everything else was OK. Then yesterday it would not boot up past the samsung screen. It charges up OK, and I can get to Odin where it asks if I want to load another operating system by holding power and vol up. But unless it is plugged in, just holding power off puts it in a boot loop.
The other part is if it is stuck and I hold power off it usually vibrates twice before boot looping.
I rooted the tablet when I got it, but still run stock touchwiz, I just needed some rooted apps namely LMT pie controls.
Can anyone please point me towards what to do next. Thank you very much for your help.
I guess wiping data and factory reset is your only solution right now
I shall warn you you could lose your data so I hope you already have a backup!
And also I've read that lollipop fixed flickering issue in p900 devices
I hope everything goes well for you
Good luck
hey there, you are not the only one, check this post. it seems is somethig related to battery issues
http://forum.xda-developers.com/showpost.php?p=61785158&postcount=14
minionhunter said:
The other part is if it is stuck and I hold power off it usually vibrates twice before boot looping.
Can anyone please point me towards what to do next. Thank you very much for your help.
Click to expand...
Click to collapse
When power on, try pressing on the back, near the center with your hand. to see if it can boot normally,
Keep pressing while power on. if it works I will tell you what causing this problem.
https://www.youtube.com/watch?v=VeSG0hHpAG8
here you can look by the minute 2:30 where the connector is located, basically under the samsung logo. I'm not doing tests yet because i have a busy day ahead
Thank you all for the responses. Holding down the back while powering on does not help. I do have the flickering thing and that started leading up to this. Lay night I took it the battery and disconnected it for a half hour and that did not help. Looking at the connections with a 20x hand lens did not reveal any cracks.
I don't remember how to wipe the data off the device, I got it right when it came out rooted it with cf root and never got around to twrp. All I wanted was LMT and Xposed. I never even updated the OS.
If anyone can help walk me through this to get it running again I'll send you a green poetic skin used once or a white well used GumDrop hideaway case I tested for work. I just would like to get this running instead of needing to purchase a new one.
Thank you again. Sincerely.
Flickering screen is caused by cracked battery connector which cannot be seen under magnified glass. Re solder will fix it, trust me I did fix some of them
Beut said:
Flickering screen is caused by cracked battery connector which cannot be seen under magnified glass. Re solder will fix it, trust me I did fix some of them
Click to expand...
Click to collapse
So resolder the 6 posts connecting the battery connector to the motherboard? Is there anything special I need to do that, just my soldering iron with a fine tip and solder? Anything special I need about the solder or do I need a wik or anything? The last time I did any soldering work was about 25 years ago.
Also will this fix the bootlooping and hanging on booting up at the Samsung word on the screen? If it is not going to fix that problem, maybe I should look at something else first.
Thank you very much again for your help.
Sincerely
minionhunter said:
So resolder the 6 posts connecting the battery connector to the motherboard? Is there anything special I need to do that, just my soldering iron with a fine tip and solder? Anything special I need about the solder or do I need a wik or anything? The last time I did any soldering work was about 25 years ago.
Also will this fix the bootlooping and hanging on booting up at the Samsung word on the screen? If it is not going to fix that problem, maybe I should look at something else first.
Thank you very much again for your help.
Sincerely
Click to expand...
Click to collapse
First, pressing the battery connector help your tablet to boot is a confirmation of cracked battery connector solders. 90% flickering problem is from cracked battery connector. 10% is bad battery. You should fix the battery connector first as it's major defect seen in many Samsung tablets. Re solder is simple, apply flux, then heat these pins and add more solders as possible to secure these pins. Even new main board, this connector will crack just after 3 or 4 months depending how you use your tablet, especially with who using it on their laps. The main board sits on a flexible LCD and only 3 screws to hold it to the frame at 2 speakers. You don't need to remove the main board, just disconnect your battery and re solder the connector from the top.
Be careful as this connector is very close to other components. Trust me, this re work will fix this problem as I have seen in some cases, battery jumps up from 8% to 45% after the re work, other cases pressing the battery connector help the tablet to boot or stop flickering.
This person applied the fix and succeed.
http://forums.androidcentral.com/sa...screen-flickering-problems-3.html#post4473418
I have the Note Pro 12.2 and I had this same screen flickering issue. It would start to flicker at first around the 38% mark. I did research online and found this thread and many others. I tried the software fixes like the enabling of Developer Mode and screen brightness and other tries, but to no avail. When I pressed on the back of the tablet, the screen flickering would stop but then shortly return. So I saw the fix of trying to raise the motherboard which worked for about 2 weeks, then the screen flickering did return. It would then start to flicker around the 58% battery level mark and when it got down to around 26%, the tablet would shut down. When I plugged it in, it would show battery level of 0%, then quickly jump back up to the 26% mark when it shut itself down. So then by this time, I saw more of this thread and now was shown the soldering of the battery connectors. I had soldering equipment, but it was too large for this repair as these 6 pins are very close together. So I went to the hobby shop and purchased new equipment for about $30 with a smaller pin to be able to do this. Now, I am not an electronics guy and my past experience was replacing two bad capacitors on my Plasma TV when it went bad. That was the extent of my experience to date. So I opened up the back of my tablet and soldered the 6 pins again and the screen flickering has not returned. I am on my 5th battery cycle from 100% all the way down to 2% and the screen flickering and shutting itself down has not returned. Some people have said an electronics guy will do this for you for around $30. Well, I spent the $30 and did it myself. I want to thank the people for posting the solutions here as the soldering worked for me.
And from this post, a confirmation that repair center will do the same thing to fix flickering , auto reboot, auto shut down.....etc...all problems caused by cracked battery connector ( Connector Header ):
http://forum.xda-developers.com/showpost.php?p=58943998&postcount=74
Ok I'll try to resolder it this weekend and report back. I think that my pertinent problem is that I have both the battery issue AND another problem that the tablet won't boot up at all but I will try the battery fix first and see what happens. Then I will report back.
Thank you very much for your suggestions.
Your feedback is very important as I see many " Hit and Run " users, they get the solution they need but never post back. Your first priority is fixing the battery connector, then next is the battery if problem persists.
This is a hardware defect I have seen in many Samsung tablets: battery capacity fluctuation, quick discharge, auto reboot, auto shutdown.......all come from battery connector . Read the threat Flickering Screen you'll see others try all solutions but never work because they don't know this is a hardware problem coming from this tiny connector.
So voided warranty due to unlock, I gave it a shot.
M8 lost its usb micro port, no charging or pc syncing. I got a replacement, viewed some vids and leapt.
I was able to get the replacement in and it fixed the micro port issue but in trying to reassemble, I have trouble getting the plastic power button insert, to seat and operate correctly. Its super loose and trips the contact/holds down constantly. I took it apart multiple times, cannot get it to work as it was pre-disassembly.
Whats the trick getting the button right? I saw no springs or anything, looks like a super small bearing was found??????, the black hold down tape right where insert sits was torn???????, how does the contact actually trigger with the insert.? If I knew what it was suppose to look like assembled properly.................................
Phone works, except now it will not turn off cuz button goofy. I damaged the NFC circuit with all the handling. Is there a tech drawing with the parts listed? I paid a lot for the bleeping thing, it works I just need to iron out the button really.
links or pics appreciated.
TY
Hi everyone, not sure if this is the right place to ask this question but here it goes. But an old s5 for about 60 bucks. It had the screen pretty damaged but the LCD worked fine. So since I like to tinker with things, I decided to see if I could fix it. I bought an inexpensive lcd separator, bought me some LOCA glue. I was able to separate the glass from the lcd without any apparent damage......err ....so to speak....I assembled the phone back. When I plug in the phone to a charger, I can see all the appropriate LCD lights. The screen shows the battery icon that shows up when a phone is charging. But the pressing the power button does nothing. I am pretty much stumped. I took everything apart to make sure things were connected right but I am not sure where to go with this...can anyone provide any advice?
PS. taking the glass off with the lcd separator (which is basically a hot plate) and a wire was really efficient. and a lot easier than trying to separate the glass with a guitar pick
I also bought a 10 dollar new glass for the phone...first time trying loca glue and I am proud to say that I had no air bubbles
It's my understanding that the ribbon cables behind the screen are extremely delicate and easy to damage. It is possible that you inadvertently damaged or severed them while removing the broken screen.
Try this link below, if you haven't already, and look through the steps to see if you may have missed something.
https://www.ifixit.com/Guide/Samsung+Galaxy+S5+Display+Assembly+Replacement/26914
thanks guys, if it is a problem with the power button, I have purchased the back tray which houses the power button. Maybe that will work.
I might have a method. Assuming the home and volume buttons still work, you can hold volume down and home and then plug the device into a computer or any power supply that charges it. This will then open up download mode. The power cord will be acting as the power button here. Once there, press volume down to cancel and then it should reboot your phone to the OS.
Okay... I replaced a broken digitizer on a tf300t i had sittin round. Worked fine after reassembly, until i noticed i got an eyelash inbetween the digitizer and lcd. I finally had time to disassemble the gd thing today... Took forever! So now that i've reassembled it, it won't turn on. So... Opened it back up, and realized i've lost the little silver doohickey that sits on top of the sensor on the ribbon cable...
Found a replacement ribbon cable thingy for $12, but all i need is the little silver bit that lays on top. Is there ANYTHING I can do to keep from forking out $12 for some little bit of metal on a plastic tab?? I'm considering taking the one off the volume down button as a stopgap, but the volume button really should work properly, especially since i've got a brand spankin' new digitizer.
Edit: just remembered i can get it turned on by plugging in the charger, so... Is there any kind of app i can install that'll give me software access to the power menu? If I can just find a way to turn it off (other than waiting for the battery to go flat), i'll accept that.
Found one. If anyone else needs one, search 'allenfang' on google play.
My Nexus 5 got squished such that the screen was badly cracked and the digitizer stopped working. I still like this phone, so I ordered a replacement screen+digitizer (and battery too) and tools to replace them.
Everything seemed to go fine at first. After getting the old screen out I attached the new one and I wanted to test it before putting everything back together so I set the motherboard and charger board in place and connected all the cables without screwing everything down. I turned the phone on and it worked. The screen+digitizer worked and it looked like my phone would live.
Then I screwed everything back together and it wouldn't turn on. I mean I would push the power button and nothing at all would happen. So I took the back cover off and unscrewed everything and tried again and it powered on again. So I started putting it back together one piece at a time and what I think I've narrowed it down to is that when I put on the small cover over the motherboard (iFixit calls it the midframe but I'm not sure that's right -- sorry can't post link) and screw in the top-right screw (as viewed from the back -- it's the one above the volume control) then it won't power on. I assume something is shorting out. I don't even actually have to screw in that screw. If I squeeze that corner a bit, it won't power on.
Any advice? Thanks in advance.
I think I got it. Since the front camera was near that screw I tried taking it out, then putting everything else back together and the phone worked! The front camera had fallen out during disassembly. So I watched a video on how to replace it and found out you have to stick the tab coming off the camera underneath the rubber tab attached to the frame. I did, put everything back together and it works.
Thanks for reading.