[Q] Use PC to power on tablet? - Android Q&A, Help & Troubleshooting

Hello everyone, newb here. First off I woud like to thank everyone who contributed on how to root android tablets hee re, as I was able to root my Insignia flex 8 because of this site.
I do have a question about my Insignia. a few weeks back water spilled into the headphone jack, and no I didn't do anything special to dry it as I was at work, and of course it was powered on. Since then the power and volume buttons haven't worked (shorted I suppose), so I've always kept it charged and woke it up by inserting my micro sd card. As I feared would happen one day, the battery died and the tablet turned off before I could stick it on the charger. Of course the power button still doesnt work.
Since my tablet is rooted, is there a way I could use apk manager or something to power on my tablet from a pc? Give it a jolt or something? Will the pc software even recognize the tablet without it being powered on while plug in?
At this point anything will help. Thanks for everyones time and consideration.
Insignia Flex 8 black
duel core rockchip 1ghz?

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[Q] SGS2 + Logitech Z305?

Hi All, hopefully im posting this in the right place. I've searched and cant find anything similar. Been a user here for a while, but first time posting a question, so please go easy on me! lol
I recently bought a USB OTG cable for my SGS2, and since then i've been plugging pretty much every USB device i have into it to see if it works or not, with varying degrees of success.
Tonight i had the thought of plugging my logitech Z305 usb speaker in and trying it out, and to my amazement it kind of works lol The volume buttons on the Z305 control the media volume on my phone, and i can hear the speakers are active, as there is dead air. When playing music, it plays through the phone speaker, but not through the Z305. I've read that some usb devices require more power, and may work through a powered hub.
I guess what im asking, is has anybody tried this, is there any possibility this might work? Thanks in advance!
A month later, im googling the same topic and find this thread lol
About 5 mins ago, i finally cracked this and got it to work with my iconia tablet, then tested it on my S2 and it works!
USB provides power, obviously, and by simply using a 3.5mm male to male cable, plugged into the device and into the Z305 and i now essentially have a portable stereo! Just thought i would share, considering all the interest i generated from my OP lol

[Q] So I did something stupid Android tv box 4.0

I hope I have this in the right section, if Im wrong please forgive me. So I did something really stupid thinking I could get around compatibility issues, and now I am asking myself "why did you do that? You know better."
Anyways, heres the scoop: I bought an android tv box running 4.0 ICS theres no model number on the box, but Im sure people smarter than I know what Im talking about. Anyways, I gave the unit to a friend of mine and he made a complaint, so I switched him for a spare roku I had. When I had the box, I did the first stupid thing- I was trying to take out the sd card and thought that if I press it in, it will pop out. Which it didnt and instead shoved the sd card into the casing and caused the solder holding the metal shell (that holds sd card in place) to break. No big deal, I just used my friends soldering iron and reattached it. Then I got home and wanted to mess with it. But I have an analog tv and this unit only has hdmi output, although it has one port for av and one for y/pb/pr (it looks like earphone jacks). So in my extremely keen insight and extensive expertise, I plugged the hdmi cable into the unit (without power cable attached) and plugged it into the hdmi port on my roku. On the system the light went blue (which indicates its on) and stayed like that, I looked in the settings thinking maybe it "picked it up". Anyways, the roku reset itself and the android box blue light was blinking- so I thought "HMM I should probably unhook that" so I did and called it a night. Next day I went to see a friend of mine and plugged in into his lcd tv, tried to turn it on, and it wont. When I plug in the power adapt. it shows the red light that there is power, but when pressing the on button the color doesnt change (to show its on) and same when trying to turn it on with remote. I looked over the MOBO but no signs of anything exploded or burnt. I made a bootable usb with android 4.0 firmware and an sd, but nothing.
Any ideas on how to fix this? Theres no warranty, I bought it from craigslist and if worst comes to worst Ill put it on a chain and call it nerd bling. Im open to other suggestions as well, and help related to the issue with possible solutions.

I have 2 tablets that IDK if there bricked or not need help. (Thanks)

First off I have a "IRULU X1047" and a "RCA Voyager" I rooted then with KingORoot after a few days they died. The IRULU was my replacement for the RCA and but this is the odd thing both of them when i connect them to the computer i can her the windows USB plugin sound and thin in about 30 sec I hear the USB disconnect sound and then in about 2 sec it makes the USB plugin sound and it keeps doing this. BUT the RCA If I hold the reset button with a paper clip will show the Charging pic for about 2-5 min then it will go black and not come back on.
I have the ADB driver installed and No they do not show up on ADB.
and used Tether but it was a no go.
I also used about 5 different USB cables
And on the RCA I tried opening the tablet and unplugging the battery for the mainbord and it did not help.
No they will not go in to recovery mode.
No screen ever pops up but for the with the batter when I do the rest button for the RCA thats it.
also fore the IRULU if open Device Manager and watch it when its pluged up the the USB and it makes the windows USB plugin sound This item shows up.
---https://i.gyazo.com/2946ac41b3d5cdb42f6235e24cd8ca15.png---
Note the RCA died when i was re-rooting it with KingORoot and when it rebooted it was bricked. The IRULU I was setting up the app LINK2SD
and just had moved some apps and was rebooting it and then i never came back on.
Thanks for all the help. I can fix almost any computer you place in my ands but im just lost with tablets and phones. My hopes are to get the IRULU back and running.

SGP512 faulty screen?

Hello and good day.
I wondering if anyone here knows the Xperia Z2 Tablet well enough to help me proceed to the next step in getting my xperia z2 tablet back in working order.
A little history; I used the tablet on/off when I first bought it, then life took over and I had no time or use for the tablet. Now with a new job starting in 2 weeks time, I could very much do with getting the tablet to work.
I thought the tablet was in some sort of Sleep of Death but it appears that was not the case; I originally tried all the different button combinations, letting it discharge and recharge, used PC Companion to repair, Used Flashtools to repair.
Now, the strange bits; the tablet won't respond to button presses UNLESS I have the micro usb cable plugged in either by charging or connected to a PC/Laptop; whilst connected to a charger it will do the 3 vibrations/led routine. when connected to PC/Laptop it will pretty instantly go in to fastboot mode. and this is the strange part, reboot the device in to system (I also have to quickly remove the USB cable) and can hear it boot up.
all that happens with NOTHING on the screen.
So I had an idea; I attached an MHL cable. Lo and behold I have a picture on my TV, but still nothing on the tablet.
So does any one know where to go from here? could it be a lose connection to the screen??
Seems like a faulty logic/mother board
just need to find a source..

SGP311 brick - no usb signal at all, no boot, some led blinks...

Hi,
Please, be patient while reading this post, this is a looong explanation of the brick I am facing...
I recently was given a non working XTZ SGP311 and tried to get it back to life. As I have another one SGP311 (this one is perfectly working), I am able to check many things.
I read most of topics about XTZ unbrick but can't find any way to get it back working.
The problem is that I can't have any signal from usb (data or power). I use a genuine Sony USB cable and genuine Sony charging adapter (coming from the working SGP311). The led always stays off.
I tried the different combos as described (vol- and power ; vol+ and power ; vol+ and vol- and power) during 5, 10, 20, 30 seconds (yes, quite complete tests).
I did a cross check of batteries and inside usb connector ribbon (yes, had to open both tablets for that), the working tablet continues to work with the 2 parts coming from the faulty one (battery coming from dead tablet was 0% charged), so the problem is not on the side of the inside usb connector neither on the side of a supposed dead battery. The faulty tablet doesn't boot, even with a fully charged battery inside.
I luckily own a XTZ dock (SGPDS5) that allows to charge without using usb connector (it uses the 2 contacts located on the left side of the tablet). That's the only way to get something...
Soooo, when I put the bricked tablet on its dock, the red led flashes very slowy (say, 1 second off, 1 second on red, and so on).
When I press vol- and power, nothing happens (no matter 5/10/15/20/25 seconds).
When I press vol- and vol+ and power, idem.
When I press vol+ and power : I got the sequence blinks once white led / blinks 3 times white led (after that goes to slow red blinking about if I keep the keys pressed). So not completely dead.
If I unplug it from the dock right after the third white blink, plug the usb cable to the tablet, plug it to my laptop (with emma running, tried with pc companion too), and press vol-, then....nothing happens. Really nothing. No led lit. No detection of anything from the laptop (or device manager as well). It would have been the same if I would have kept it unplugged.
To sum it up, the only thing I can have is 1 or 3 white blinks after having plugged the SGP311 on its docks.
IMO, the trouble comes from a faulty component inside the tablet. Maybe the one that manages the connection from the usb ribbon plug. I checked the tiny plugs inside the tablet (once dismantled and back repacked too), all seems in order.
Your help is welcome !
This is similar to an issue I have it sounds like, you can still flash stock rom by holding power + volume till it blinks 3x then plug USB in and hold volume down immediately.
This gives flash mode, you can use flash tool to put stock rom on with this. The issue happens when it's acting like there's no OS it seems. Problem is mines doing this everytime I flash a custom rom, it's fine with stock aside from **** wifi
Thanks for your help. I tried that yesterday and it did not work.
This may be related to the way of reset I use (but I can't have any other).
As I can't get any white blinking led when connected by the tablet micro-usb port, the one and only way to get the 3 times white blinking led is when the XTZ is on its dock (SGP DS5, power connection only by lateral contacts).
What I tried yesterday was to get the 3 time white blinking led (vol+ and Power), then output the tablet off the dock and connect a usb cable to a laptop running Sony Emma (from micro usb tablet port to usb laptop).
Precision : I kept VOL- pressed when pluging usb cable to laptop.
No result at all. No detection (either Emma nor windows).
Any idea ?
jzk01 said:
Thanks for your help. I tried that yesterday and it did not work.
This may be related to the way of reset I use (but I can't have any other).
As I can't get any white blinking led when connected by the tablet micro-usb port, the one and only way to get the 3 times white blinking led is when the XTZ is on its dock (SGP DS5, power connection only by lateral contacts).
What I tried yesterday was to get the 3 time white blinking led (vol+ and Power), then output the tablet off the dock and connect a usb cable to a laptop running Sony Emma (from micro usb tablet port to usb laptop).
Precision : I kept VOL- pressed when pluging usb cable to laptop.
No result at all. No detection (either Emma nor windows).
Any idea ?
Click to expand...
Click to collapse
let it charge for a night period. Then try to flash again.
Rootk1t said:
let it charge for a night period. Then try to flash again.
Click to expand...
Click to collapse
Thanks for your advice, I appreciate.
But I swapped batteries from the working XTZ to the non-working one and put a (about) 60% charged battery into the bricked XTZ (both batteries are charging when set into the working XTZ). I will try anyway.
The problem is that the non working XTZ does not charge either through usb or through the dock. The only interest of the dock is that this is only situation where I can have the "triple white led blink" (but nothing more).
That's why I need the working XTZ for charging before doing anything with the non working one.
What I could try would be to connect the lateral contacts with wires to the dock in order to keep an access to the usb tablet micro port and connect it to a laptop.
But this may be hairy as this would give 2 ways for power (one by the dock and the other by the USB port), and may produce a short circuit...
Any XTZ power experts around ?
Hello, Did you find a solution to this issue ?
Hello, did you find a solution for this issue ? Look like that I had the same.
jzk01 said:
Thanks for your advice, I appreciate.
But I swapped batteries from the working XTZ to the non-working one and put a (about) 60% charged battery into the bricked XTZ (both batteries are charging when set into the working XTZ). I will try anyway.
The problem is that the non working XTZ does not charge either through usb or through the dock. The only interest of the dock is that this is only situation where I can have the "triple white led blink" (but nothing more).
That's why I need the working XTZ for charging before doing anything with the non working one.
What I could try would be to connect the lateral contacts with wires to the dock in order to keep an access to the usb tablet micro port and connect it to a laptop.
But this may be hairy as this would give 2 ways for power (one by the dock and the other by the USB port), and may produce a short circuit...
Any XTZ power experts around ?
Click to expand...
Click to collapse
Canhobix said:
Hello, did you find a solution for this issue ? Look like that I had the same.
Click to expand...
Click to collapse
Well, not a real solution...
I bought a cheap xtz with broken screen and got its working motherboard and put it instead of the other one.I got the lte component too with its antenna and put it into the 1st xtz that was not supposed to have lte.
So now, on one side I have a xtz with faulty motherboard and broken screen, and on the other side a refurbished xtz with LTE !
I like very much this tablet. Very handy, easy to dismantle and easy to swap its components.
The only drawback is no more support for Sony.
Thank you for the answer
So, you are saying that if I replace the motherboard I can fix that ? I'm looking for motherboard on ebay and I found one for $28 usd + shihpping.
Thank you for answering and take care.
jzk01 said:
Well, not a real solution...
I bought a cheap xtz with broken screen and got its working motherboard and put it instead of the other one.I got the lte component too with its antenna and put it into the 1st xtz that was not supposed to have lte.
So now, on one side I have a xtz with faulty motherboard and broken screen, and on the other side a refurbished xtz with LTE !
I like very much this tablet. Very handy, easy to dismantle and easy to swap its components.
The only drawback is no more support for Sony.
Click to expand...
Click to collapse
Canhobix said:
So, you are saying that if I replace the motherboard I can fix that ? I'm looking for motherboard on ebay and I found one for $28 usd + shihpping.
Thank you for answering and take care.
Click to expand...
Click to collapse
Yes. I think this should be good.
Don't care about the exact matching of the product code: as long as it'll be xtz, it'll be good (16 or 32 gb, with or without lte, and any region should match).
Did you opened it already ?
Yes, I opened 2 years ago cuz my son broke the power jack connector then I replaced that twice.
I'm also tech guy, I can replace that, but won't expend more than $50 for a new motherboard. I'm looking on ebay now.
Thank you
jzk01 said:
Yes. I think this should be good.
Don't care about the exact matching of the product code: as long as it'll be xtz, it'll be good (16 or 32 gb, with or without lte, and any region should match).
Did you opened it already ?
Click to expand...
Click to collapse

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