Develop Bugs

[SOLVED]Computer see's device for a few seconds, then disconnects.

Interesting problem I have had on and off. When I plug my phone into my desktop, it will connect normally, then a few seconds later it acts like I unplugged it. It's not the rom as it does it in recovery as well(both with usb-ms activated and without). I have HTC Sync installed. Rebooting either the computer and/or phone doesn't fix it, it just goes away after awhile and starts working again. I've experienced the problem FAR less when connecting it to my laptop, it will typically work there and not on my desktop when the problem crops up.
it's like this problem but it's not constantly http://forum.xda-developers.com/showthread.php?t=711616
-Edit- the device also doesn't show it's charging even when it 'disconnects'

I have the same problem. just keeps discontenting over and over it sees it for a few seconds then disconnects reconnects then off again.

sasigns said:
I have the same problem. just keeps discontenting over and over it sees it for a few seconds then disconnects reconnects then off again.
Click to expand...
Click to collapse
Mine doesn't reconnect, it 'disconnects' and stays that way(as if i unplugged it) until i actually do unplug it and reconnect it.
-edit- 1,000th post, YAY

I was having the same problem on my MacBook until I realized the MacBook must be plugged into power. Once plugged in everything was good. I wonder if the Evo demands more power through USB then other devices.

Yeah, sounds like a power issue to me. If you're using a USB port on a hub or on a keyboard, try one on the PC itself. Also, it could be a slow USB port or a bad cable if you are continuing to have issues. Try another computer if you can, and if you still have the problem try a different cable. Still have the issue, reflash (if you're running a custom rom) or contact Sprint for service.

Same issue here, but on a desktop PC (Dell Studio XPS) using the front-mounted USB port (not a hub). Keeps disconnecting/reconnecting, but often takes 10-15 minutes between cycles. Using stock ROM (for now, at least). Will try other ports & another PC and will report back.

Already tried different ports, only motherboard ports
Rom doesn't matter as the problem exists in both android and recovery
Don't have a different cable, however the same cable will work fine on my laptop then not work on my desktop

mrono said:
Already tried different ports, only motherboard ports
Rom doesn't matter as the problem exists in both android and recovery
Don't have a different cable, however the same cable will work fine on my laptop then not work on my desktop
Click to expand...
Click to collapse
If it works on a laptop, but not the desktop, then it appears to be an issue with your desktop. Any other USB devices doing it?
I would check your motherboards manufacturer and make sure you've got the right USB drivers, a bios update might be in order as well.
But before all that, I've got an idea. First and foremost, try this:
Go to device manage (either from control panel, right-clicking my computer and going to properties, or searching for devmgmt.msc in the start menu search.)
Navigate down to Universal Serial Bus controllers, double click on USB Root Hub (you probably have 1 for every USB Port, so you may have to do them all.)
Click on the Power Management tab, and uncheck the "Allow the computer to turn off this device to save power." check box and see if that solves your problem.

i had this issue on my hero. it was corrected for me after i did a wipe of data and cache. i restored from titanium afterwards. YMMV
good luck

one thing you might try is disabling sense and using the android launcher. then reset the phone. once it boots up try and connect it to your pc. This was how I got mine to connect. when I was using the sense launcher it somehow blocked that options screen and the default I selected wouldn't stick. once I got the connection to my pc working this way I was able to re-enable sense and it's worked perfectly ever since.
I do not take credit for this fix, someone else on here told me to try this n it worked perfectly.

tarheelsmj12001 said:
one thing you might try is disabling sense and using the android launcher. then reset the phone. once it boots up try and connect it to your pc. This was how I got mine to connect. when I was using the sense launcher it somehow blocked that options screen and the default I selected wouldn't stick. once I got the connection to my pc working this way I was able to re-enable sense and it's worked perfectly ever since.
I do not take credit for this fix, someone else on here told me to try this n it worked perfectly.
Click to expand...
Click to collapse
it was nothing with the rom, since it was doing the same thing in recovery.
it turned out to be the short little usb extender cable that was going a foot and ahalf from behind my pc to the side so i could plug it in easier.

Sirchuk said:
...Navigate down to Universal Serial Bus controllers, double click on USB Root Hub (you probably have 1 for every USB Port, so you may have to do them all.)
Click on the Power Management tab, and uncheck the "Allow the computer to turn off this device to save power." check box and see if that solves your problem.
Click to expand...
Click to collapse
I can confirm this works on my HTC Desire - had been racking up my brains for the past couple of days now with no solution! Thanks a lot. This is on PC with Win7 Ultimate.

One X Causes Mac to Freeze

I am having multiple issues. The big one is that sometimes when I plug in the phone to my Macbook Pro, it decides to hang the OS. But it's really weird. It's like only the mouse and keyboard hang. Music will keep playing normally, the clock in the menubar runs with no problems, and if I press the power button the "What do you want to do?" window still pops up, I just can't tell it anything. It forces me to hold down the power button for a hard restart. Here's the weird part: I can't narrow it down to what is causing it. I can't tell if it is the phone in Disk Mode or what. And it doesn't always do it. Heck, sometimes the phone won't even act like it's plugged into a computer so it won't even try to connect.
When I first got the phone it didn't do this, but a few weeks after installing DoubleTwist (the only thing I have installed for this phone) it started happening. Uninstalled DoubleTwist and it still does it.
Any help is super appreciated. I searched around and there are similar problems on other phones, but nothing as odd as this.
Thanks!
HTC One X 2.20 unrooted
Macbook Pro running Lion 10.7.5

this happens to me on my macbook air when I plug in any kind of usb device. it starts working fine after a few seconds though. It doesnt bug me enough that i feel the need to find a solution right now but test if it happens with other usb devices.

shahravi94 said:
this happens to me on my macbook air when I plug in any kind of usb device. it starts working fine after a few seconds though. It doesnt bug me enough that i feel the need to find a solution right now but test if it happens with other usb devices.
Click to expand...
Click to collapse
I have had no other problems with any other devices. And for me, this doesn't go away if I wait for 30 seconds or so. I did find out a few minutes ago that if I unplug my phone, within 30 seconds my mouse begins to work again, but my keyboard still won't work. It seems as though if I press a few keys on my keyboard sometimes the mouse will lock up for another 30 seconds. Only a restart will make it all work normally.

gotcha. well in that case sorry I don't know

Ha it's cool. Hopefully somebody will know though!

have you written to apple to make sure it's ok to plug in an android phone to a mac?
are you on ICS or JB? if it's the later it could be the MTP connection that's been introduced

you have to let your mac and hox know that the lawsuit is over...

waz000000 said:
have you written to apple to make sure it's ok to plug in an android phone to a mac?
are you on ICS or JB? if it's the later it could be the MTP connection that's been introduced
Click to expand...
Click to collapse
Hahahahaha, for some reason I don't know if that was ever an issue lol
I'm running 4.0.4 which from what I understand is still ICS. So it's probably good that I haven't attempted to upgrade just yet?
The main reason I even care right now is because I'm trying to jailbreak, but I'm having all sorts of issues. I figured I'd start with this one haha.

hahaah

I bet if you had an iPhone ,you wouldn't run into this kind of problem ,htc
Sent from my HTC One X using xda premium

I have no issues with my mac...running OS10.8.2...i plugged my HOX, transferred data and even flashed boot.img via mac...no issues whatsoever..seems like you may have to do a SMB reset..try googling ur issue, probably there's a solution somewhere..

atrako1973 said:
I bet if you had an iPhone ,you wouldn't run into this kind of problem ,htc
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
When I plug in my iPhone I don't have this kind of problem
However, my iPhone also can't record audio anymore, and it's two years old. My HOX can and isn't :highfive:
amirage said:
I have no issues with my mac...running OS10.8.2...i plugged my HOX, transferred data and even flashed boot.img via mac...no issues whatsoever..seems like you may have to do a SMB reset..try googling ur issue, probably there's a solution somewhere..
Click to expand...
Click to collapse
I'll look up an SMB reset. Haven't heard of it. Still new to Android lol
However, I googled for a while and even went nuts on here looking for it, no one has this exact issue. The other similar issues only involve programs freezing. For me it seems like my keyboard and mouse freezing, while the computer keeps going. Sometimes I can't even get the two to talk to each other. And when I CAN get my HOX to connect without freezing up the keyboard and mouse, when I run the root through terminal it can't find the phone, in charging mode or in disk mode.

Your Mac is jealous
Sent from my HTC One X using xda app-developers app

So, did an SMC reset (when I googled SMB reset, SMC came up instead). I thought it worked, but it didn't. My mouse would unfreeze, but my keyboard would still be jacked until I restarted. And if I pressed too many keys on the keyboard the mouse would freeze back up for another 30 seconds. I am too tired to think of what I could do right now haha. Throw suggestions (LOGICAL ONES!) and I'll try it out haha. I just want this dang thing to work so I can root! :silly:

This is clearly a Mac issue. Absolutely nothing to do with the hox whatsoever.

You said that you used to be able to plug the phone in without any issues, and the only reason you want to plug the phone in now is to root it (You said Jailbreak but I presume you meant root).
Why don't you try a factory reset on the HOX and see if it resolves the issue. If it does then you can root your phone and will be installing a new ROM anyway so it won't matter that you've done the factory reset. If it doesn't then it means something has changed on you MAC and I can't help you unless you install Windows

Have you tried another usb charge cable with your phone and macbook it could be the cable is damaged internally causing a short circuit and making the usb devices play up even internal like keyboard/trackpad? Just a guess as Ive experienced a broken cable disabling usb which then works fine after reboot.

jo3yp said:
You said that you used to be able to plug the phone in without any issues, and the only reason you want to plug the phone in now is to root it (You said Jailbreak but I presume you meant root).
Why don't you try a factory reset on the HOX and see if it resolves the issue. If it does then you can root your phone and will be installing a new ROM anyway so it won't matter that you've done the factory reset. If it doesn't then it means something has changed on you MAC and I can't help you unless you install Windows
Click to expand...
Click to collapse
factory reset of HOX won't solve an issue with computer. It seems that you USB port is screwing up or is screwed up. See if you can connect another android device the computer and repeat the issue again...if so your USB port is jacked...BTW, u are not using an external keyboard/ mouse, are u?
I'd take the computer back to the service centre and shown them the issue...

me too...seems like MTP is not going well on mac(

jo3yp said:
You said that you used to be able to plug the phone in without any issues, and the only reason you want to plug the phone in now is to root it (You said Jailbreak but I presume you meant root).
Why don't you try a factory reset on the HOX and see if it resolves the issue. If it does then you can root your phone and will be installing a new ROM anyway so it won't matter that you've done the factory reset. If it doesn't then it means something has changed on you MAC and I can't help you unless you install Windows
Click to expand...
Click to collapse
I did mean root haha my bad. If a different USB cable doesn't work then I'll try resetting the phone
gffmac said:
Have you tried another usb charge cable with your phone and macbook it could be the cable is damaged internally causing a short circuit and making the usb devices play up even internal like keyboard/trackpad? Just a guess as Ive experienced a broken cable disabling usb which then works fine after reboot.
Click to expand...
Click to collapse
^^^^ Now THIS I haven't really thought of! And, actually I think it makes more sense than a software issue. I was having problems sometimes even getting the two to talk to each other unless I moved the cord a bit. I've dropped the phone from my nightstand a few times and it has landed on the cord, so I wouldn't be too surprised if either the cord is messed up or (God forbid) the port inside of the phone is messed up. Sometimes if I had the HOX in disk mode and moved the cord just a bit then it would suddenly eject and often freeze. I have another cable back home, so I'll grab it when I'm there tonight or tomorrow and see if I have the same issue!

a very strange hard brick

Hi!
First of all i got AOKP + Franco kernel for 2w without any problem and I didn't change any option since last week.
This morning i rebooted it, it switched off and it didn't start again.
I cannot switch one my nexus again since then. I have always a black screen, also if I try to enter in download mode or in the recovery.
I tried to connect to my computer and smt times my laptop see a omap4400 (i'm not sure about the name) but after few second it disappears.
Tomorrow I'm going to the service center... But I have a big doubt:
What the hell happened this morning?
Thanks

Remove the battery for 5 minutes and try again.
If that doesn't work,
Follow this guide:
1. Download the zip file from http://forum.gsmhosting.com/vbb/f634...eeeee-1465412/, created by Legija
2. Extract zip to whatever location you're comfortable with (I used Android directory)
3. Open up Device Manager (Hold down Windows Key, press R, the type in devmgmt.msc and press OK)
4. Go to actions menu, select Add Legacy Hardware
5. Choose install manually, then have disk. Browse to where you extracted the zip, select the 'inf' file in usb_drv_windows
6. Choose OMAP, you'll get a popup if on Win 7, continue anyway (driver not signed)
7. Once completed with driver, pull battery out of phone, then plug it into USB
8. Double click omap4460_tuna_hs_pro.bat to start the process
9. Once completed, unplug from USB, put battery back in, and power-up!
10. Extra step - depending on what's been done, it may 'brick' again - suggest to do a restore or a wipe reinstall afterwards to be certain (mine bricked again next reboot)
Click to expand...
Click to collapse

biscuitownz said:
Remove the battery for 5 minutes and try again.
If that doesn't work,
Follow this guide:
Click to expand...
Click to collapse
This, if OP can't reach fastboot.
Sent from my i9250

I'm having the exact same problem. I saw my phone at maybe 10% battery in the AM, said screw it and let it die, woke up this morning and plugged the phone in and nothing. No LED light, black screen, completely unresponsive. I've tried every trick in the book, and the only one that seemed to work marginally even was using a different battery, which got my phone to boot to the encryption screen, but then shut off again. It did that twice, and now both batteries are useless.
I used Legija's program to try and bring some life back to my gnex, even though it's not the international version, just in hopes of getting some of my data back (I have already started the replacement process with Verizon since the phone was insured), but I got no luck there either.
It's extremely disappointing and annoying to me that this phone survived all sorts of ROM installations (I was also using AOKP on 4.1 if someone wants to start making connections), reformatting, tweaking, almost every setting on that phone was modified by me.
Not only that but almost any software or hardware problem I did run into I could solve in maybe an hour, but I let my charge run out and the phone just up and bricks itself? Now, that's just bull****... I would be very curious as to an explanation as to WHY on earth this would happen. Very confusing.
Not to hijack the thread, but my interest here is not restoring the phone to working condition but just seeing if I can pull my data off of it. I wouldn't even be posting here had I been able to have an SD card with my gnex, which I figured was unnecessary at the time I bought it since I knew the space on their was enough for me already, and the added branding of "Nexus" brand which had me under the impression it was maybe stable enough by itself. Not a mistake I'll make again..
Is it at all possible to get the data off of my phone at this point? At least partially? I believe encryption makes it impossible but I'm rather stubborn. Any help would be greatly appreciated..

owlieowl said:
I'm having the exact same problem. I saw my phone at maybe 10% battery in the AM, said screw it and let it die, woke up this morning and plugged the phone in and nothing. No LED light, black screen, completely unresponsive. I've tried every trick in the book, and the only one that seemed to work marginally even was using a different battery, which got my phone to boot to the encryption screen, but then shut off again. It did that twice, and now both batteries are useless.
I used Legija's program to try and bring some life back to my gnex, even though it's not the international version, just in hopes of getting some of my data back (I have already started the replacement process with Verizon since the phone was insured), but I got no luck there either.
It's extremely disappointing and annoying to me that this phone survived all sorts of ROM installations (I was also using AOKP on 4.1 if someone wants to start making connections), reformatting, tweaking, almost every setting on that phone was modified by me.
Not only that but almost any software or hardware problem I did run into I could solve in maybe an hour, but I let my charge run out and the phone just up and bricks itself? Now, that's just bull****...
Not to hijack the thread, but my interest here is not restoring the phone to working condition but just seeing if I can pull my data off of it. I wouldn't even be posting here had I been able to have an SD card with my gnex, which I figured was unnecessary at the time I bought it since I knew the space on their was enough for me already, and the added branding of "Nexus" brand which had me under the impression it was maybe stable enough by itself. Not a mistake I'll make again..
Is it at all possible to get the data off of my phone at this point? At least partially? I believe encryption makes it impossible but I'm rather stubborn. Any help would be greatly appreciated..
Click to expand...
Click to collapse
So just to be clear... You've been able to get it to boot all the way up to the encryption screen, right? If so you should be able to get into fastboot (Holding down BOTH volume rockers and the power key.) From there you could relock/unlock the bootloader to do a full factory wipe which might solve your boot issue.
As far as the data loss from the wipe, you could then try this: http://forum.xda-developers.com/showthread.php?t=1994705

TomBall718 said:
So just to be clear... You've been able to get it to boot all the way up to the encryption screen, right? If so you should be able to get into fastboot (Holding down BOTH volume rockers and the power key.) From there you could relock/unlock the bootloader to do a full factory wipe which might solve your boot issue.
As far as the data loss from the wipe, you could then try this: http://forum.xda-developers.com/showthread.php?t=1994705
Click to expand...
Click to collapse
I was able to get it to the encryption screen with my old battery that had a little bit of charge left in it twice, but it shut itself down on me both times. So now both batteries are useless.. I took it to the Verizon store hoping they would maybe try one of their batteries, but they just called customer service and told me they're just going to replace it at this point.
I have a feeling the charging mechanism is somehow damaged, because when I did get it to the encryption screen I had it plugged into a wall outlet and it wasn't charging at all. So, I can't turn the phone on whatsoever anymore.. if I could turn it on I could solve this problem... but it simply refuses to boot. The closest I came to interfacing with it was the OMAP Flash script, which did work, but didn't fix the problem.
So maybe if I could get the phone working enough to use ADB with it I could get my data back, but not even that seems possible..

owlieowl said:
I was able to get it to the encryption screen with my old battery that had a little bit of charge left in it twice, but it shut itself down on me both times. So now both batteries are useless.. I took it to the Verizon store hoping they would maybe try one of their batteries, but they just called customer service and told me they're just going to replace it at this point.
I have a feeling the charging mechanism is somehow damaged, because when I did get it to the encryption screen I had it plugged into a wall outlet and it wasn't charging at all. So, I can't turn the phone on whatsoever anymore.. if I could turn it on I could solve this problem... but it simply refuses to boot. The closest I came to interfacing with it was the OMAP Flash script, which did work, but didn't fix the problem.
So maybe if I could get the phone working enough to use ADB with it I could get my data back, but not even that seems possible..
Click to expand...
Click to collapse
If the phone isn't charging then there's something wrong with the USB port. One way to test that would be to use a battery charger. Also, try a different cable. I've had issues with a few different cables that for whatever reason started to not fit properly in the phone.
If you're USB port has gone bad then you'll need to either A) Always use an external battery charger. B) Get a replacement. C) Fix it yourself (Good guide here: http://www.ifixit.com/Guide/Repairi...+LTE)+Micro+USB+Charge+Port+&+Main+Mic/9641/1 )

Device can no longer see computers, need some help figuring things out.

Ok, first off I chose Sprint because I believe that Boost Mobile is on the sprint network, but my phone doesn't specifically say sprint on it or anything, so I had no clue which of these device boards to post into. This is the exact page I got it on, if that helps. [link deleted - paranoid forum rules] - I will post specs of the device in a minute.
Alright, the issue with my phone, is that after I used a car charger 2 months after I got my phone, it suddenly stopped being able to connect to ANY computer ever again. I suspected it was PDA net at first cause that was the newest change I had done to my phone. So, a few days later, I could find now way whatsoever to fix it, and had to factory reset. This fixed my phone just fine.
Two months later, I was fed up with having battery issues all the time, this phone drains battery faster than my laptop, and its battery is 3.8 years old! I got an external battery that holds 20,000 mAh/74 Wh (Practically the same as my laptop battery too. ) that is from the LimeFuel company. I know that before I used it, my phone worked with my laptop just fine. I don't plug my phone in to my laptop all that often, especially now that I have a battery to use with it. However, I download large files on my phone with 4G to put onto my laptop because my home net is crappy, so a week after, I noticed that my phone lost the ability to communicate with computers, again. I then realized, it had to be the connections. The first time it happened was when I used a car charger, the second time, an external battery. Each time, my phone suddenly inexplicably lost the ability to communicate with a computer ever again. It can only see devices as a power source, nothing more. There's no missing software or drivers, it just doesn't register as anything to my computer. Like a power toggle so it can't tell the computer "Hey, I'm a device that you can transfer data with".
One more note; The first time this happened, I had activated developer options but had them turned off. I mean that I used USB Debugging mode once and turned all of that off. The second time, I hadn't even unhid the option yet, unhid after my phone broke again to try and fix but nope.
I did research on trying to fix it, without factory reset because a factory reset is USELESS, if it's going to happen every single time I use anything but the wall to charge it, right?
There was a topic online claiming that there is a menu under "Storage" in the settings. There isn't. It was a big fat lie. Or Android devs deleted it.
There was another topic, claiming that USB settings would be under some wireless and networks area. Nope.
Now, I remember that when my device would connect to the computer, it would let me change it from MTP to PTP, but after this happened, nothing. It doesn't even pop up anymore, nor does it ask. There is no where in the phone that these options even exist at all. It's like Android devs deleted access to these options for no reason whatsoever.
Another bit in that topic mentioned ‘USB Mass Storage’, which also doesn't exist. Here's the topic with everything I tried, if I'm allowed to give links at all. If not, well not my fault. Topics used to try and diagnose and fix issues, but failed;
[link deleted - paranoid forum rules]
[link deleted - paranoid forum rules]
(There were more but I can't remember them all, it's more or less the same as the two above)
"To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!"
Translation: "To prevent spam, we want to hinder only legitimate users by making them post 10 units of spam first before they can get help with their issues by showing exact information and screenshots of their issues or steps taken given by other websites."
So. How do I get my phone to connect to computers again?
Why does it stop accepting data from computers after I use a car charger or an external battery pack?
Why would Google/Android devs choose to intentionally break your phone like this?
Code:
Hardware: L710T.03
Software: L710TVPU0AOA3
Model: SPH-LT10T
Android 4.4.2
Kernal: 3.4.0-1683363 (Ask if need more)
Build: KOT49H.L710TVPU0AOA3
Ask of need more.

VasVadum said:
Ok, first off I chose Sprint because I believe that Boost Mobile is on the sprint network, but my phone doesn't specifically say sprint on it or anything, so I had no clue which of these device boards to post into. This is the exact page I got it on, if that helps. [link deleted - paranoid forum rules] - I will post specs of the device in a minute.
Alright, the issue with my phone, is that after I used a car charger 2 months after I got my phone, it suddenly stopped being able to connect to ANY computer ever again. I suspected it was PDA net at first cause that was the newest change I had done to my phone. So, a few days later, I could find now way whatsoever to fix it, and had to factory reset. This fixed my phone just fine.
Two months later, I was fed up with having battery issues all the time, this phone drains battery faster than my laptop, and its battery is 3.8 years old! I got an external battery that holds 20,000 mAh/74 Wh (Practically the same as my laptop battery too. ) that is from the LimeFuel company. I know that before I used it, my phone worked with my laptop just fine. I don't plug my phone in to my laptop all that often, especially now that I have a battery to use with it. However, I download large files on my phone with 4G to put onto my laptop because my home net is crappy, so a week after, I noticed that my phone lost the ability to communicate with computers, again. I then realized, it had to be the connections. The first time it happened was when I used a car charger, the second time, an external battery. Each time, my phone suddenly inexplicably lost the ability to communicate with a computer ever again. It can only see devices as a power source, nothing more. There's no missing software or drivers, it just doesn't register as anything to my computer. Like a power toggle so it can't tell the computer "Hey, I'm a device that you can transfer data with".
One more note; The first time this happened, I had activated developer options but had them turned off. I mean that I used USB Debugging mode once and turned all of that off. The second time, I hadn't even unhid the option yet, unhid after my phone broke again to try and fix but nope.
I did research on trying to fix it, without factory reset because a factory reset is USELESS, if it's going to happen every single time I use anything but the wall to charge it, right?
There was a topic online claiming that there is a menu under "Storage" in the settings. There isn't. It was a big fat lie. Or Android devs deleted it.
There was another topic, claiming that USB settings would be under some wireless and networks area. Nope.
Now, I remember that when my device would connect to the computer, it would let me change it from MTP to PTP, but after this happened, nothing. It doesn't even pop up anymore, nor does it ask. There is no where in the phone that these options even exist at all. It's like Android devs deleted access to these options for no reason whatsoever.
Another bit in that topic mentioned ‘USB Mass Storage’, which also doesn't exist. Here's the topic with everything I tried, if I'm allowed to give links at all. If not, well not my fault. Topics used to try and diagnose and fix issues, but failed;
[link deleted - paranoid forum rules]
[link deleted - paranoid forum rules]
(There were more but I can't remember them all, it's more or less the same as the two above)
"To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!"
Translation: "To prevent spam, we want to hinder only legitimate users by making them post 10 units of spam first before they can get help with their issues by showing exact information and screenshots of their issues or steps taken given by other websites."
So. How do I get my phone to connect to computers again?
Why does it stop accepting data from computers after I use a car charger or an external battery pack?
Why would Google/Android devs choose to intentionally break your phone like this?
Code:
Hardware: L710T.03
Software: L710TVPU0AOA3
Model: SPH-LT10T
Android 4.4.2
Kernal: 3.4.0-1683363 (Ask if need more)
Build: KOT49H.L710TVPU0AOA3
Ask of need more.
Click to expand...
Click to collapse
First off, after the factory reset and everything worked did you reinstall the pdanet?
Second, 20,000mah battery? Holy cow im jealous!
Forgive me if you have already tried these things but this is what i would do...
Did you reenable developer options and reenable adb debugging?
Did you uninstall and reinstall your phone drivers?
Is there an updated phone driver?
Have you tried a different usb cord?
Is there excess dirt or dust in usb charge port on your phone?
Does your usb charge port even work anymore or do you just charge external battery on wall?
Have you tried a different usb port on the computer?
Have you tried on another computer?
Have you tried updating computer drivers?
Have you enabled a fast charge tweak like on a kernel tweak app?
If none of these questions fix it then a workaround is downloading app called airdroid. You can wirelessly transfer files from phone to computer and back again without usb cord.
Let me know what worked please! Good luck!

ZipAddict said:
1. First off, after the factory reset and everything worked did you reinstall the pdanet?
2. Second, 20,000mah battery? Holy cow im jealous!
3. Did you reenable developer options and reenable adb debugging?
4. Did you uninstall and reinstall your phone drivers?
5. Is there an updated phone driver?
6. Have you tried a different usb cord?
7. Is there excess dirt or dust in usb charge port on your phone?
8. Does your usb charge port even work anymore or do you just charge external battery on wall?
9. Have you tried a different usb port on the computer?
10. Have you tried on another computer?
11. Have you tried updating computer drivers?
12. Have you enabled a fast charge tweak like on a kernel tweak app?
13. If none of these questions fix it then a workaround is downloading app called airdroid. You can wirelessly transfer files from phone to computer and back again without usb cord.
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Click to collapse
1. No, I never touched PDA net again.
2. Too bad forum rules say I can't be friendly and give you the link to it.
3. Read the topic you quoted. I did, only after my phone broke again. Except it's not adb debugging, it's USB debugging. Doesn't work, because the phone can't communicate with a computer anymore.
4. 5. 11. Yes I reinstalled drivers and no there were no updates.
6. 7. Nothing's wrong with the cable. I did try with others.
8. What does that even mean? Yes my phone's port works. Nothing's wrong with any hardware.
9. 10. I've tried different ports and different computers.
12. Can't, phone isn't rooted.
13. I'm not using this. My phone is not there for Google/Android to tell me I'm not allowed to use my USB port ever again. I'm also not going to wait 4 hours for a 4 GB file to transfer via my router to my computer nor am I installing some app software to my computer just to have wireless transfer. This is not a work around. This is an "Oh well, it's broken, guess you can't ever use USB ports again for data access!"
note; I tried all of these (except 12/13) before I ever came here looking for help.

2. I will google it
3. I didnt realize toggle to turn on usb debugging didnt work sorry. I just know it needs to be on for the computer to see the phone. This seems to be an area of problem possibly.
8. Lol! What i meant was did the area where u insert charger function properly. Only reason i asked is because some of those batteries charge on wall unit made specifically to charge the battery only not with charge.
12. Doesnt require root for basic settings like changing governor usually. Only to overclock/undervolt, etc.
13. Great answer! But i meant as a temporary fix until someone more experienced with this issue helps you.
I also figured listing all those things would help other people see what you had and hadnt tried before asking you next time. Wish i couldve helped more. Good luck

ZipAddict said:
2. I will google it
3. I didnt realize toggle to turn on usb debugging didnt work sorry. I just know it needs to be on for the computer to see the phone. This seems to be an area of problem possibly.
8. Lol! What i meant was did the area where u insert charger function properly. Only reason i asked is because some of those batteries charge on wall unit made specifically to charge the battery only not with charge.
12. Doesnt require root for basic settings like changing governor usually. Only to overclock/undervolt, etc.
13. Great answer! But i meant as a temporary fix until someone more experienced with this issue helps you.
I also figured listing all those things would help other people see what you had and hadnt tried before asking you next time. Wish i couldve helped more. Good luck
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Click to collapse
2. amazon dot com /External-20000mAh-Limefuel-LP200X-Flashlight/dp/B00OHZVN5U/ - It let me charge my phone 7-8 times fully before it was empty. Automatically stops when your phone is full.
3. USB debugging doesn't need to be on in order for a phone to communicate with a computer. This is only if you want to debug apps or use other developer tools. File transfer works just fine without it.
8. I still don't understand what you mean. My phone is not broken in any way. Nor is my battery. My external battery charges off any USB input, my phone charges off any USB input. My phone just can't communicate data wise between devices anymore via USB.
12. Fast charge isn't going to fix my phone. Unless it disables data communication, then I need to turn it off. All "kernal tweak apps" appear to require root. The top 5 google searches shown this.

3. Wasnt sure. Ive always had it on
8. Some aftermarket batteries dont charge while in phone hooked up to charger. They come out of phone and into specialized charger for battery only not phone with it, so that it can charge the larger battery in a matter ofan hour or so is what i have been trying to say. But its obvious thats not the case for you now since i asked and clarified. If this was the case one might not know that the small usb port on their phone needed cleaning to make a good connection because they literally dont use it to charge their phone. They charge their phone with external battery charger. You see?
12. On my custom rom and on my trickstermod app it does say fast charge disables data communication and that you have to turn it off for computer to recognize phone again. This fast charge mode only works when connected to computer not wall charger it says
Wish i could be more help but im out of ideas. Good luck

Update to the current situation.
My phone is somehow, repaired. But I have no clue why. I did several things today, just screwing around while I backed up my stuff to the SD card. One of them could have fixed it, or my phone is magic and self repairs after a while. Lets list everything I can remember that I did.
1. I typed in *#9900# in my dialing app. Toggled an option called "Low battery dump" to "on".
2. I deleted a whole bunch of files, including hidden files on the internal storage. Probably screwed up my apps but, whatever, it works now.
3. I pulled the SD card out.
Shortly after all these things, I plugged it in for power, and it finally, got my computer to see it as an MTP device again. No clue which of these succeeded. I'm going to wait a small bit before I test the things that tend to break it.
The magic option, is because I tried to root, it broke, stuck in download mode with some error about firmware. For 4 hours it was stuck like this, I tried everything I could think of, which wasn't much, tried installing the ROM back too, after wasting 2 gigs of bandwidth downloading it only to get an error before it even started the install. Phone was still rebooting in download mode error screen. Left it sit there off for like a minute and it just turns it's self back on, flickers a few times and the logo pops up and the device pops on like nothing had ever happened to it. I'm so confused. :/ At least everything's back to normal. Now add a good confusion post icon below so I can click it and post. :|

VasVadum said:
12. Fast charge isn't going to fix my phone. Unless it disables data communication, then I need to turn it off.
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Click to collapse
this was your problem remember? fast charge does disable data communication.
VasVadum said:
Update to the current situation.
My phone is somehow, repaired. But I have no clue why. I did several things today, just screwing around while I backed up my stuff to the SD card. One of them could have fixed it, or my phone is magic and self repairs after a while. Lets list everything I can remember that I did.
1. I typed in *#9900# in my dialing app. Toggled an option called "Low battery dump" to "on".
2. I deleted a whole bunch of files, including hidden files on the internal storage. Probably screwed up my apps but, whatever, it works now.
3. I pulled the SD card out.
Shortly after all these things, I plugged it in for power, and it finally, got my computer to see it as an MTP device again. No clue which of these succeeded. I'm going to wait a small bit before I test the things that tend to break it.
The magic option, is because I tried to root, it broke, stuck in download mode with some error about firmware. For 4 hours it was stuck like this, I tried everything I could think of, which wasn't much, tried installing the ROM back too, after wasting 2 gigs of bandwidth downloading it only to get an error before it even started the install. Phone was still rebooting in download mode error screen. Left it sit there off for like a minute and it just turns it's self back on, flickers a few times and the logo pops up and the device pops on like nothing had ever happened to it. I'm so confused. :/ At least everything's back to normal. Now add a good confusion post icon below so I can click it and post. :|
Click to expand...
Click to collapse
glad whatever you did fixed it lol. have a good day

ZipAddict said:
this was your problem remember? fast charge does disable data communication.
glad whatever you did fixed it lol. have a good day
Click to expand...
Click to collapse
Except, I don't have a fast charge option anywhere. I can't toggle fast charge. My phone is unrooted and locked and such. If plugging in a device like a battery or a car charger, toggles this option and the OS developers deleted access to toggle this option, it is an OS bug and a critical issue in the device that needs to be fixed. I don't know what fixed it, but I'm assuming it was the low battery dump, and that doesn't appear to have anything to do with fast charge and it was a hidden secret option in the system.

VasVadum said:
Except, I don't have a fast charge option anywhere. I can't toggle fast charge. My phone is unrooted and locked and such. If plugging in a device like a battery or a car charger, toggles this option and the OS developers deleted access to toggle this option, it is an OS bug and a critical issue in the device that needs to be fixed. I don't know what fixed it, but I'm assuming it was the low battery dump, and that doesn't appear to have anything to do with fast charge and it was a hidden secret option in the system.
Click to expand...
Click to collapse
The way u said it i misunderstood i thought u did have it on. Its not an option on all roms though. Mine has it and i tried it and couldnt see files thru usb until i toggled it off so it was just an idea. I dont know the effects of the low battery dump off top of my head but i will remember that if i hear someone else with same problem. Glad its fixed now

[Unsolved] Screen issues

Video of the issue: https://www.youtube.com/watch?v=XzIx9SHj6MQ&feature=youtu.be
According to my sister it has always had the screen "artifacts"as shown in the video where certain pixels are the wrong colours (which apparently never set off any alarm bells in her head... ). But apparently the screen and device stopped responding correctly a while back which i have been able to find out can be fixed by taking the back off the device. I can not use the recovery on the device since it just displays multicolored static on the screen, same thing happens when the device is plugged in to charge while powered off. I told her to get all important data off the device and factory reset it so the device is all at factory defaults to rule out software issues. After that didn't work i took the back off the device to check to see if the screen was connected correctly and to see if there were any obvious issues such as the cable being visibly damaged or disconnected etc.
Image of the issue when charging: http://i.imgur.com/Kat1RoC.jpg
So everything is stock on the device. It has never ran anything but official updates directly from Google.
The device is out of warranty and considering the cracks on the corners of the case i doubt Google/Asus would be happy to fix the device out of warranty without it getting expensive. It would be nice to fix it if it is possible or financially viable.
Any ideas and suggestions appreciated!

Have you tried a factory reset? If not, have you tried reflashing a stock rom, wiping everything?

dikidera said:
Have you tried a factory reset? If not, have you tried reflashing a stock rom, wiping everything?
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Click to collapse
It has been factory reset. I have not flashed a new ROM to it.
I have actually fixed that issue by putting some padding in to prevent the cable from flexing so much inside the case. So the device now functions as an e-reader and web browser. But it still cannot play video or cope with scrolling through images and so on due to the tearing. It gets worse the more that is updated on the screen. This may still be a cable issue.
I would flash a new kernel and ROM to the device but download mode doesn't work since no computer can recognize the device. In download mode and recovery the screen shows the static as shown in the image meaning i cant really use it easily. Since it is still running stock recovery i cant just flash a zip file, since download mode doesn't work it may be difficult to do the above.
But i only have experience with my own Galaxy S2 which runs custom everything. So my experience is with Odin and CWM, so i am not familiar with download mode for other manufacturers.

The second image, I know this. I was fiddling with the ribbon cables one day and I also got that distorted screen.
If it appears when charging, sounds like...the cable is not grounded or something and the signal(to/from the ribbon cable) is being distorted. But that is just a guess, it could be anything.

dikidera said:
The second image, I know this. I was fiddling with the ribbon cables one day and I also got that distorted screen.
If it appears when charging, sounds like...the cable is not grounded or something and the signal(to/from the ribbon cable) is being distorted. But that is just a guess, it could be anything.
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Click to collapse
Its not exclusive to charging though therefore i dont think it is power related. It happens every single time the system displays something on screen outside of Android. So the charging screen, recovery and download mode are all displayed as that.

Have you tried fiddling with said cable when you get the distorted image, in an attempt to perhaps fix it? it's odd that it appears with system messages. This sounds more and more like a true hardware issue(a defective unit) than software or a "simple" ribbon cable problem.

dikidera said:
Have you tried fiddling with said cable when you get the distorted image, in an attempt to perhaps fix it? it's odd that it appears with system messages. This sounds more and more like a true hardware issue(a defective unit) than software or a "simple" ribbon cable problem.
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Click to collapse
Not while it displays that image. But i have unplugged it and plugged it back in and nothing has helped.
My theory at the moment is that the cable is damaged meaning when the device tries to completely update the screen data goes missing and it struggles. Since videos dont work at all while the android flappy bird clone works flawlessly since it doesn't need to send as much data to update the screen due to the solid background colours and so on. But there are still holes in that theory, for example the issues become many many times worse when the device is in landscape mode.
So as far as i can tell it could be anything from heavily corrupted software to broken vram and anything in between including broken cable (since fiddling with that has fixed a different issue, perhaps its related) to the displays RAM for storing the previous screen update being broken. I can't tell.

Defective VRAM is also a possibility.
But I am not aware of any tool(for Android) that would allow for direct memory scanning of the VRAM. If you end up deciding the tablet is a goner, and want to buy a new one. I'd advise against another N7, it's already old, and the bugs are not worth the hassle.

dikidera said:
Defective VRAM is also a possibility.
But I am not aware of any tool(for Android) that would allow for direct memory scanning of the VRAM. If you end up deciding the tablet is a goner, and want to buy a new one. I'd advise against another N7, it's already old, and the bugs are not worth the hassle.
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Yeah, im not aware of any either. I have also been through all the relevant debugging tools. Telling the screen to flash on update actually made the device function much better (where it flashes pink on each update) it stopped the issues from being serious. But lets face it, no one is going to want to use a device with that debugging option left enabled.