Phone is extremely slow after replacing the screen - ONE Q&A, Help & Troubleshooting

Hi all, I dropped my OPO a few months ago and completely shattered the screen+digitizer. I unplugged the battery and it has since been sitting. Today I received a new screen in the mail and replaced the broken one and put it all back together, but it's now running so laggy that I can't hardly do anything. It is running LineageOS on Android 8. I thought that the screen I bought may have just been a counterfeit with a terrible refresh rate (like 5-10 FPS) but I remoted into it with both Vysor and TeamViewer and they are lagging too, so it seems to be a software issue. I was then planning on potentially trying to flash a new ROM and just starting fresh, but I couldn't get it to boot into recovery, it just shows a black screen and TWRP never loads. After about an hour of fiddling with it I was able to get it back into Lineage, but the issues persist. Any ideas on what may be causing this?

Related

Nexus 5 Screen Freeze

Was at about 30% battery and the screen froze as in it wouldn't take any touch events. The backlight would react as if the screen wasn't touched. It seems like the touch events just were not registering but the phone worked in the background. Kernel issue maybe? I have been using faux.
Something similar ....
I had a similar experience on the 15th .... took my N5 off the Qi charger and the screen froze when i tried to unlock it.
I hit the power button and was able to unlock and get a few touches in before it froze again.
I was finally able (after much screen off/on cycles) to get down to the developer options and turn on show touches & show cpu usage.
... background processes looked fairly normal when the screen was frozen(touches showed as frozen) ...
I was rooted, stock rom except for xda user Jishnu Sur's N5 camera mod and running a couple tried & true root apps(Stickmount & QuickBoot). Thought some software issue might be jamming up the digitizer i/o causing it to freeze.
Reverted entirely to stock (the Team Win recovery was also experiencing screen freeze - buttons worked fine) including removing TRWP and re-locking the boot loader!!
The screen freezing problem persists ... my conclusion is that it's a hardware issue. :crying:
It's possible you are seeing the same thing, but I haven't seen anything in the forums to indicate it's a widespread problem.
Returning it for a replacement phone ... :fingers-crossed:
Hi,
same problem here from France.
I already returned a Nexus 5, after multiple freeze I tried to format data partition via bootloader, (no rooted phone, following google instructions for stock reset) then the phone crash wile formatting, it never wake up gain.
When I get a new one from google after one or two week same problem appears, and it's append more and more often, since monday my phone crash one time more every night, and all the day today.
A this time I'm still trying to load it sine I came back from work seven hour ago, battery still at 49%.
I think it's and hardware issue too.
I'm very disappointed about Google and I'll never by anymore LG products.
Thanks for reading.
biggiephat said:
Was at about 30% battery and the screen froze as in it wouldn't take any touch events. The backlight would react as if the screen wasn't touched. It seems like the touch events just were not registering but the phone worked in the background. Kernel issue maybe? I have been using faux.
Click to expand...
Click to collapse
Freezes tend to happen on custom kernels specially if you under-volt it too much. have you done that?
Screen Freeze
canaillou2k5 said:
Hi,
same problem here from France.
I already returned a Nexus 5, after multiple freeze I tried to format data partition via bootloader, (no rooted phone, following google instructions for stock reset) then the phone crash wile formatting, it never wake up gain.
When I get a new one from google after one or two week same problem appears, and it's append more and more often, since monday my phone crash one time more every night, and all the day today.
A this time I'm still trying to load it sine I came back from work seven hour ago, battery still at 49%.
I think it's and hardware issue too.
I'm very disappointed about Google and I'll never by anymore LG products.
Thanks for reading.
Click to expand...
Click to collapse
Last week I had the same problem with my new NEXUS 5. IT’S TOTALLY A HARDWARE ISSUE.
LG products are however not so bad in the JAPAN market but still we are expecting a lot from LG technology.
LG services suck.
I am facing the same problem with my Nexus 5. Unrooted, bought 7 months back from India itself, was working fine till around two weeks back,when the lags, screen freeze, blacking out n all appeared. Got it repaired twice at the LG centre. They changed the front display touchpad as well as the charging connector strip. The problem still persists.

[Q] My display seems to fail randomly, even after changing LCD. What could it be?

So here's my issue. Yesterday, my phone started to give me a while screen full of dead pixels (pinkish color) randomly. I would turn off the phone, turn it back on and after 2-3 minutes it would crash again. Last year I dropped it and cracked the screen, so to me it was related to that. The phone works fine other than that (music plays when display fails. I did wipe it completely and reinstalled Kit Kat, it solved the issue temporarily but after 30 minutes it started again.
Today I decided to go check out a phone repair shop and ended getting my phone fixed by them. What this consisted of is a replacing the display and plastic frame. I picked up the phone and everything was perfect, new screen and display which looks and feels like new.
Now it's been about 5 hours and the phone started acting strange again. Now it's a lot less worse than before, but I still get the full screen of dead pixels. The display will go on and off (I guess it's trying to reinitialize or something) but always fails. So I end up rebooting the phone for it to work again.
The 2 times it happened after getting the phone fixed it was when I put it in my pocket to go from my work to my car, and then from my car to my home. So I don't know if it has anything to do with being in my pocket, that's why I came here.
So could anyone could shed some light on my issue here? Is my phone already dying? It's only been 13 months and I'd hate to have spent for a new display for basically nothing.
Replace the flex cable. If that doesn't work then it's an issue with the motherboard/screen, in which case you would have to guess between the two, or simply send it to LG and pay for a repair.

[Q] Random reboots after screen replacement of Nexus 5, twice

I need your help, please.
Last year I broke my Nexus 5 screen.
After replacing the LCD (original) I encountered random reboots every day.
I took it back to the store, they replaced the screen again and the random reboots disappeared.
About a year later, 2 weeks ago, I broke the screen again
Took it to a different store and paid again for the original LCD replacement.
**Surprisingly, random reboots are back!**
My phone randomly reboots itself maybe 3-4 times a day, sometimes it won't turn on until I press the power button for about 10 seconds, and then it starts "optimizing apps" for a few minutes.
I tried clearing the cache, reinstalling kernels, factory reset, wiped everything and reverted to a blank new ROM, problem persists.
I also tried tapping the device, playing with the power button etc... nothing, it doesn't seem to be related.
I went back to the store, but I couldn't even show the problem, as the reboots only happen randomally and there's no way to initiate it.
He didn't agree to replace the screen again, and advised me to buy a new battery (which I didn't)
The technician seems like a nice guy, I don't think he is trying to rip me off.
He is the store owner so replacing the screen will go straight from his pocket, and he's really convinced that the random reboots has anything to do with the screen replacement.
On the other hand, the alternative is me paying again for a screen replacement, which I really don't want to, as paying for two screen replacement is almost like buying a new phone :/
My questions are:
1. How is it possible that the same problem happened twice? Maybe there is something wrong with my phone that is not related to the screen?
2. Any ideas how can I reproduce the reboots manually? so at least I can make him believe that there is a problem.
3. What do you think I should do? I really need a working phone and not excited about paying again.
Thank you!

Very Odd Fault - N5 can get into fastboot but shuts down after Google logo.

I've been experiecing an issue like no other I can find online and I'd love to hear some opinions.
So, originally the problem was the phone's screen was going black straight after the Google logo, I had a hunch that it was a fault with just the screen as it was pretty badly smashed and seemed the phone was running in the background and you could get the backlight to come on. Then all of a sudden it would stop doing it and then start again intermittently.
I flashed to 6.0 to see if might be some random ROM error, but still exact same problems. Screen came back and then went again. So I grabbed a new screen and swapped out the part. Now at least I don't have a smashed screen and faulty digitizer.
Now the problem appears to be slightly worse. The phone gets to the Google logo again now but now it completely shuts down after it, but it still gets to fastboot! (Is fastboot stored on another chip than FW? If so that worries me.)
Any suggestions on getting some more info by troubleshooting would be golden. I've got some basic to intermediate experience with phone repairs, computing and electronics etc. so no need to simplify explanations too much.
Thanks in advance!
Have you tried re-flashing a stock ROM and then performing a factory wipe?

Nexus 5 Black Screen Issue

Hey, I m facing problem of nexus 5 black screen issue it turns on but nothing shows on display...(display tested works,and flex cable also replaced)
Can anyone help in this??
There is no display in fastboot mode either?
If you are sure the display connecting cables work, sounds like a motherboard problem.
I'm not trying to hijack the thread, but I thought it would be easier to post in here since I seem to be having a similar issue. I can't figure out if it is software-related or hardware-related.
I recently updated my Nexus 5 to Lineage OS 14.1 (11/7/17) and my screen began glitching. After an indeterminate length of time, my screen starts bugging out - the touchscreen won't register any touches, pixels get glitched and then it usually goes black. Sometimes the display will reset itself, and other times it will stay just black. Now the odd thing is if I force a reset by holding the power button down, I can get it to reboot and usually it fixes the issue... briefly. I've noticed sometimes however that even the boot animations will glitch out too, but by the time it gets to my home screen it's just fine, again for an indeterminate amount of time
The phone was bought used from Swappa probably almost a year ago now. Worked great up until now, I'm sure it's been dropped before both by me and the previous owner, but the screen itself from the outside doesn't show any signs of damage (No cracks, scratches).
I've since gone back to an early October build of LOS14.1 that wasn't giving me any issues like this, but I'm still getting them. So I'm leaning towards it being a very odd hardware issue or maybe I need to Factory Reset and dirty flashing updates is catching up to me.

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