Backlight glow charging - Sony Xperia ZL

Stock, rooted, leaving he phone charging overnight.
Next morning (every morning) I notice the backlight is slightly glowing -- looks like the back light is on and the screen set to black. Not the LED alert signal, that's sometimes flashing sometimes not (depending on whether I have a message), but there's a soft glow. If you had any room light on you cannot see it.
This morning I used the on/off button to turn the screen on, then off -- glow vanished. So it's not always there, and not related to (just) having the USB cable plugged in (which it still was).
The phone does charge, it is not hot, there is nothing that I can see unusual in Better Battery Stats. Normal battery life (well, seems reasonable, better than my GS2, about 50% for my average day).
Can someone take a look after a normal charge in a completely dark room -- is your backlight on? Again -- LCD solid black, just a dark grey glow through it.
PS. I will check tonight -- I am not sure if it starts on or not, I only have noticed it now on several mornings in a row, and forget to look as it starts charging.

Weird. I never seen that happened to me. Mine is completely stock and rooted with Rogers.

Now I'm really confused. I was curious and woke up a few times to look.
First, on hooking it up - no glow.
Then only one of three times was there a glow, but it was there - same symptom, you bring up the screen with the power button, then put it back to sleep - gone.
I think it must be some app. It may relate to the calendar notifications, last night one went off in the middle of the night which is why I checked it.
I'll try to see if I can pin it down; it's more curiosity than anything else. The phone charges fine, and it's not bright enough to bother, and I suspect the backlight could run 24x7 and not burn out before I have 5 new phones. Just weird.

Related

Charging issue, light remains red

Hey guys,
So I just bought myself one of these:
http://store.androidcentral.com/seidio-innocell-1750mah-extended-battery/8A37A6040.htm
And so far I've been fairly pleased by the performance.. although I haven't yet done a real good test of it (I will this week). One issue I've noticed, though, is that no matter how long I leave the thing on the charger, the light (infuriatingly ) remains red. If I reboot the device while it's charging, or turn it off, the light will turn green, indicating that it is charged up, but if I unplug & use the device, then put it on the charger later, it will never come back to 'green'.
Does anyone know what this means or how to fix it (other than just popping my stock battery back in..)?
*bump*
I just got rid of the sense homescreen, and the default one displays the battery charge; it's stuck at 96%.

[Q] Screen dims, won't respond

Having a strange problem. I've had my EVO since launch day, been running Tommy T's Classic .06 for weeks. A couple days ago I walked by my phone on the charger and the screen looked odd, it was very dimly lit and the charge light wasn't on any more. Unplugged it, LED was blinking that I had unread mail, so it wasn't completely dead or anything.
It had been on the charger since the previous day and I'd used it several times that morning to check e-mails, text, etc with no issue. I don't think the screen was on when it happened. I tried tapping the screen, the home button, then pressing the power button.
Pressing the power button made it light up a little brighter, then pressing it again made it dimmer but not go off.
Tried holding down the power button, nothing. Finally pulled the battery and turned it back on, worked fine.
Today, same thing happened. After a battery pull it's back to normal again. I haven't installed any new programs lately, no changes, and I'm running the stock kernel from the ROM. No task killers or anything like that. It's never done this until the past couple days.
Hoping it's not dying on me, anyone have any suggestions?
Are you on your original stock battery? Sounds like the voltage regulator in the battery maybe going bad and not letting the phone get the right amout of power or letting the phone know it is getting the power
We are legion, for we are many
Possibly still using the original, I have a couple others I can try. Would that affect it while it was on the charger and fully charged?
Yeah the voltage regulator does a few things, while charging it limits the input from wall to 3.7v or less so the battery doesnt burst while off charger it communicates between phone and battery to use more or less power while in use or idle etc, when it goes bad it fails to communicate properly and may not let the battery get enough power while charging. My stock crapped out on me about a month ago and all of a sudden, woke up one day and it would die within an hr of being unplugged plug it in and it would say it was at 78% then full in 10 mins
We are legion, for we are many

Some basic noob questions, and I think my phone might be defective?

I have no experience with LG phones - I've been an HTC guy forever so there's a bunch of stuff here I'm not used to. I picked up the black leather sprint version from bb last night, charged it overnight, and activated this morning. I've been playing around with it all day, and there are a few things that are confusing me. I'm guessing that I'll need to wait until root for some/all of these.
1 - Is there any way to change the opacity of Smart Notice? We've got that great screen, and Smart Notice just blots it out.
2 - Is there any way to turn off the boot sounds?
3 - For the camera, is there any way to set a review time after the pic is taken?
4 - Where's the GPS toggle? Is it just always on?
5 - How do you set the phone to silent? There's no silent sound profile - is priority only interruptions the same as silent (meaning that the phone is silent, but my alarm clock app will still go off)?
6 - The led glows red while it's charging with the screen off, but when the screen turns comes on, the led goes away even though it's still charging - is there anyway to keep that charging led with the screen on?
And this is why I think my phone might be defective;
1 - It gets pretty hot doing normal things (not gaming)
2 - It takes FOREVER to charge. Even doing lightweight things like browsing and whatnot, the battery will still deplete even though it's plugged in to ac. I have it plugged into ac right now at 52% and it says that it will take 4 hours to fully charge from here. I'm pretty sure that if I leave the screen on while plugged in, it won't charge at all.
3 - When I plug the stock included charger into usb, I get a message that says "Use standard charger to charge faster". I get this message on usb even on cables that I know should work fine, and again, this happens even on the stock cable.
This battery thing is driving me nuts because I can't use the phone - that's not normal, right? The problem is that I'd have to exchange it at BB, and apparently none of the stores in my area have any.

Phone shut off, won't turn back on no matter what, blank display/GreenBlue LEDs HELP

Hello all. I recently made this thread where I described the phone, the LG G3 d851 t-mobile variant. randomly rebooting and not turning on without pulling the battery. (http://forum.xda-developers.com/lg-g3/help/d851-randomly-shuts-off-wont-power-t3424458). I deduced it to the replacement battery (supposedly genuine) that I purchased from a seller on ebay. I put my old battery in and everything is fine again, and the seller shipped me another replacement battery (big mistake, i know).
I put in the replacement battery, and a day later the phone shuts down again in the same manner as stated in the previous thread. I pull out the battery and put it back in and.. nothing happens on screen. The LEDS just flash green and blue. I tried plugging it into a charger, just a red LED, no display. If I plug in the phone to a charger without the battery inserted, the backlight activates but nothing whatsoever appears on the screen. I cannot get into the recovery either.
If I let the phone sit for a while, and try to power it on, I see the LG boot screen appear for about 5 seconds. Then the image flickers and fades away to black, and the LED just flashes blue/green.
Am I screwed or is there any way to salvage this phone? I'm desperate for any assistance and I'm totally open to any component level repair you guys recommend (I'm pretty broke :/)
Thanks all!
Current behavior:
Attempt to turn phone on: Blank display, no backlight, blue/green LEDs
Plug phone in with battery in: Blank display, no backlight, red LED
Plug phone without battery in: Blank display, backlight active, red LED
Do any of the above after leaving phone off for a while with battery unplugged: display begins to display the expected image for 5 seconds, then the screen flickers and the image fades until the screen turns black.
I tried the old (working) battery, and no luck either.
[edit] Hopefully solved. please read my latest post for my idiotic but somehow functional solution
amaskedman said:
Hello all. I recently made this thread where I described the phone randomly rebooting and not turning on without pulling the battery. (http://forum.xda-developers.com/lg-g3/help/d851-randomly-shuts-off-wont-power-t3424458). I deduced it to the replacement battery (supposedly genuine) that I purchased from a seller on ebay. I put my old battery in and everything is fine again, and the seller shipped me another replacement battery (big mistake, i know).
I put in the replacement battery, and a day later the phone shuts down again in the same manner as stated in the previous thread. I pull out the battery and put it back in and.. nothing happens on screen. The LEDS just flash green and blue. I tried plugging it into a charger, just a red LED, no display. If I plug in the phone to a charger without the battery inserted, the backlight activates but nothing whatsoever appears on the screen.
I tried the old (working) battery, and no luck either.
If I let the phone sit for a while, and try to power it on, I see the LG boot screen appear for about 5 seconds. Then the image flickers and fades away to black, and the LED just flashes blue/green.
Am I screwed or is there any way to salvage this phone? I'm desperate for any assistance and I'm totally open to any component level repair you guys recommend (I'm pretty broke :/)
Thanks all!
Click to expand...
Click to collapse
It would help if you would say what variant you have (at&t, verizon, sprint). Can you boot into TWRP? If your able to get into bootloader kdz or tot back to stock.
netookska05 said:
It would help if you would say what variant you have (at&t, verizon, sprint). Can you boot into TWRP? If your able to get into bootloader kdz or tot back to stock.
Click to expand...
Click to collapse
Sorry! I am using the d851 T-mobile model. I can't boot into recovery or anything. the LED just flashes some color but nothing appears on the screen.
Behavior:
Attempt to turn phone on: Blank display, no backlight, blue/green LEDs
Plug phone in with battery in: Blank display, no backlight, red LED
Plug phone without battery in: Blank display, backlight active, red LED
Do any of the above after leaving phone off for a while with battery unplugged: display begins to display the expected image for 5 seconds, then the screen flickers and the image fades until the screen turns black.
Will update the OP
Thank you for the reply.
amaskedman said:
Sorry! I am using the d851 T-mobile model. I can't boot into recovery or anything. the LED just flashes some color but nothing appears on the screen.
Behavior:
Attempt to turn phone on: Blank display, no backlight, blue/green LEDs
Plug phone in with battery in: Blank display, no backlight, red LED
Plug phone without battery in: Blank display, backlight active, red LED
Do any of the above after leaving phone off for a while with battery unplugged: display begins to display the expected image for 5 seconds, then the screen flickers and the image fades until the screen turns black.
Will update the OP
Thank you for the reply.
Click to expand...
Click to collapse
Possibly bricked plug it into your computer and see what it comes up as.
So strangely enough, I tried heating my phone using the most idiotic method possible by letting it heat in my blanket (I don't have immediate access to a heat gun). The screen began displaying some funky artifacts when attempting to boot with the LG logo but would otherwise revert to the behavior described in the OP (only LED working, no LCD display.).
I let the phone cool for a few hours and I'm actually able to get as far as the dialog box where it asks you whether or not you really want to format, in other words the factory data reset dialog box (when holding vol down + power to get into the recovery) with minimal to no hardware artififacts., and only when I confirm that I do does it crap out and revert to the previously described behavior. But it actually lets me use the vol keys to select an option, so I'm getting a lot further than before.
So this absolutely seems to be a hardware problem. Anywhere you guys suggest I examine before I take a heat gun to the motherboard? Any specific component I should look at?
Thank you guys so much
Take it to certified technician he will fix ur device these phones are dirt cheap nowadays so u will not be charged heavily no more than 50$ worthl
So,
after reading into this more and suspecting loose solder joints (see the various threads about screen flickering problem), I decided to pursue this route and continue trying to heat the logic board.
I'm completely broke and don't have access to a heat gun, and with no other working phone I decided to take some desperate measures. For those of you having a similar problem and reading this, PLEASE DON'T ATTEMPT WHAT I'M ABOUT TO DESCRIBE. THIS IS A HORRIBLE IDEA.
I turned on the phone to get the blue/green LEDs , plugged it into the wall, and wrapped the phone with blankets. I let the phone cook itself for 2 hours.
Yes, just like the infamous xbox 360 "towel trick".
When I went to remove the phone from my makeshift blanket oven, the phone was brutally hot and felt like a stovetop (was painful to touch for the first 30 seconds). The screen was filled with artifacts due to the intense heat.
I carefully removed the battery, let the heat dissipate slowly for a couple minutes, let the phone cool on an AC unit for a another few minutes and turned the phone on.
It worked. Phone boots and haven't had a single problem for over a day.
I guess the problem was cold solder joints after all, and the intense heat was enough to reflow the solder and form a stable enough connection to allow the display to function again.
Even ran a stress test program for an hour with no issues.
Hoping this fix lasts (knock on wood), will report back if I have any issues.
Again, anyone having a similar problem, please don't emulate me. I shouldn't even have to say why this is a bad idea. Get a heat gun, remove the motherboard and heat it that way.
I'm sure applying the proper repair procedure described in this thread http://forum.xda-developers.com/lg-g3/help/screen-flickering-fix-successful-t3397411 would have fixed my problem as well.
So, why did this problem happen in the first place? I'm guessing it has to do with the overheating issues this model of phone has (at least my particular unit). I've been playing a lot of pokemon go, so the phone is running a lot hotter than it used to. The constant high temps (reading upwards of 75c frequently from my cpu) were enough to weaken the solder joints. I also recall dropping the phone a couple times while playing the game, and I guess this was enough to knock the joints out of wack.
I'm currently capping the CPU at 1500mhz and the GPU at 300mhz and the phone is running a lot cooler now. I'm probably going to set the resolution to 1080p, cap the framerate and possibly undervolt, though this might not be necessary.
Thanks for reading and hope this helps someone in the future.

Verizon M9 Bricked?

So a couple weeks back I decided to throw the unofficial Lineage OS ROM on my M9 with SuperSU and OpenGApps, and all went great for those 2 weeks until today. I was listening to YouTube (I have YouTube Red, so the screen was off), and noticed I got a notification. When I went to check it, the screen lagged a little then went black. The LED at the top of the screen was still blinking, and the display was still on. About a second later both the display and LED turned off. I didn't catch what the charge was, but it shouldn't have been low (it was at ~80% about an hour prior).
I've tried everything I can think of, and looked around the web for any advice. I've held down every combination of buttons that actually do anything for up to ~2 minutes and nothing. Both with my phone plugged in and not plugged in. My phone has been charging now for ~1.5 hours and I've tried all those buttons for varying lengths the entire hour and nothing. My stock charging cable is broken, so I've been using some other ones, and have tried on multiple cables from multiple sources. I left it plugged in to my Mophie for a large portion of that time (was walking to class) and kept an eye on my Mophie's charge level. My phone is draining it, so there doesn't seem to be anything wrong there. I'm really not sure what to do at this point. Any suggestions?
EDIT: Okay, well since I was due for upgrade anyway I have an LG G6 now so I don't need to worry about not having a phone. I still have my M9 though, so if anyone has any ideas on what's going on, and if it's fixable it would give me something to play with.

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