yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Q&A, Help & Troubleshooting] MistahBungle:
Variable. A service centre won't sell you a new one without them replacing it for you, so you're at their mercy with regard to how much they want to charge you for labour. Or you can source 2nd hand one from a 'donor' phone (say a phone with a broken screen) and either swap the boards yourself or pay a local mobile repair shop (who isn't a Samsung service centre) to do it which will still probably be much cheaper than the new board/service centre option.

Search online for 2nd hand boards (the usual places; eBay/Swappa/Google search).
[Galaxy S II Q&A, Help & Troubleshooting] loay1991:
and does changing the motherboard change the imei ?
[Galaxy S II Q&A, Help & Troubleshooting] MistahBungle:
If you put a 2nd hand board in, yes. If a Samsung service centre gives you a new board, in most countries the device will keep the current IMEI. Either way, it makes no difference in your ability to use the phone I.E it will work normally in either case.
[Galaxy S II Q&A, Help & Troubleshooting] loay1991:
can I replace the motherboard with other galaxy s2 models or does it have to be the exact same model ?

mine is Galaxy S II GT-I9100T
[Galaxy S II Q&A, Help & Troubleshooting] MistahBungle:
The I9100 & I9100T are exactly the same phone except for slight difference in radio output, I'm not aware of anything on the motherboard that's different in either model. Everything I've ever seen on here over the past two years says on many networks you'll need to use specific modems with an I9100T (I.E the modems which were bundled with stock roms released by carriers who specifically sold the I9100T) in order to get the best connectivity, which has suggested the difference is in the modem firmware only.

So, to the best of my knowledge, you should be able to use a motherboard from an I9100 in a I9100T. That may or may not be the case though.

Edit - OP - Edit the title of your thread to that of the duplicate thread which was closed by mods & make another post to this thread along the lines of your OP in that closed thread.
[Galaxy S II Q&A, Help & Troubleshooting] loay1991:
I posted what I tried for future reference.
[Nexus 5 Q&A, Help & Troubleshooting] joeliomason:
Hello, I am quite new to the android scene as I have been an iOS user for quite a few years (No judging please ;) )

Basically, I have DroidKang v10 as my ROM on my phone, and i am trying to switch to cataclysm, or in fact any other ROM, but everytime I change ROM and restore my DATA ONLY backup, I keep getting the "unfortunately com.android.phone has stopped working" or something along the lines of that, my guess is that its something to do with the back up and using different GAPPS,

Am i doing something wrong? any help would be appreciated :)
[Nexus 5 Q&A, Help & Troubleshooting] simms22:
you generally dont want to restore data from one rom to another, especially system spps. by doing so, you should expect issues.
[Nexus 5 Q&A, Help & Troubleshooting] joeliomason:
ah thats quite annoying, what if i were to use a different Gapps? am i just being a bit stupid now?? haha :P
[Nexus 5 Q&A, Help & Troubleshooting] simms22:
you can try. if you want data saved/restored, have you tried tbe default google save/restore data? main settings, backup and reset, backup my data..
[Nexus 5 Q&A, Help & Troubleshooting] joeliomason:
haha i genuinely didnt know that was there!! ill give it a go and let you know the outcome :D
[Nexus 5 Q&A, Help & Troubleshooting] joeliomason:
just wondering, how do i know when its done a backup? because there is no option or anything.. and what does it actually back up?? :S
[Nexus 5 Q&A, Help & Troubleshooting] simms22:
go to the main settings, accounts, google, press the top account(yours), make sure app data is checked, then manually sync it(or look at what time it was synced last. also, go back to backup and reset and make sure that automatic restore is enabled as well. it syncs/restores play store apps data and your system settings.
[Nexus 5 Q&A, Help & Troubleshooting] joeliomason:
lapainm her

you are absolutely amazing!! I am about to put a new rom on my phone, so i will let you know how everything goes :)
[Nexus 5 Q&A, Help & Troubleshooting] joeliomason:
it went swimmingly :) thank you for your help!! everything works perfectly
[G2 Q&A, Help & Troubleshooting] Cienight:
Dear L2 G2 owners,

I really love my battery on my LG G2 and since its not removable i want to do the best to preserve its lifespan.

So what i'm doing is, plugging in my phone to the charger when i get home and leave it there even after its been completely charged.

Is that correct or should i leave the battery to complete its cycle then charge it when its almost empty.

What other tips would you suggest.

Cheers!
[G2 Q&A, Help & Troubleshooting] mab71:
From what ive read thats exactly how youll reduce your batterys life span
[G2 Q&A, Help & Troubleshooting] Steamer86:
The more cycles, the shorter the life span. The thing that will destroy the most is heat. These are good batteries, trickle won't do much, heat is the worst. Don't worry so much about it. Nothing you do is going to have much of a noticeable impact.
[G2 Q&A, Help & Troubleshooting] Cienight:
Thanks a lot for the info guys!
[G2 Q&A, Help & Troubleshooting] Steamer86:
Btw, these batteries are indeed replaceable. Just not in a normal way, and more difficult than say a MAXX. The back cover does come off. Just a thin plastic back that can be removed going clockwise from SIM tray.
[G2 Q&A, Help & Troubleshooting] mab71:
Clockwise while facing the screen or facing the back?
[G2 Q&A, Help & Troubleshooting] Steamer86:
Screen to you. Easier to place back starting at bottom and working up to top a side at a time. Just my personal experience.
[G2 Q&A, Help & Troubleshooting] Cienight:
Any available online stores that provide such replacement batteries?

Also is there a video tutorial on how to open the back cover.

Just in case...
[G2 Q&A, Help & Troubleshooting] martyfried:
Lithium batteries

I've done a little research on batteries from such places as Battery University, and learned a few things that might be interesting. I haven't posted enough to post links, but the location after batteryuniversity dot com is "learn/article/charging_lithium_ion_batteries" if anyone wants more information.

It seems that Li-Ion and Li-Polymer batteries are treated essentially the same; the difference is mainly in the packaging. As for charging, they do better if not charged 100%, and never discharged 100%. But one thing they say, which I was told by the salesman when I bought it (but didn't believe him at the time) is that they should not be charged while power is on. The charger is designed to trickle charge the battery, coming on at a certain voltage. But when under power, this cycle happens too often and stresses the battery too much. I suppose it might be OK to charge it while on if you watch it, and remove the cable when it gets to full charge or just under that. I suppose a timer would be ideal.

I just wish I knew how much difference it actually makes, since turning it off means you can't receive calls. I've had devices with Lithium batteries in the past that were left on a charger all night, and the batteries seemed to last for several years, which is probably longer than my phone really needs to last.
[G2 Q&A, Help & Troubleshooting] carbon12:
I still think its funny that people don't think that there isn't any charging logic in the phone and that it just willfully commits battery suicide if the user doesn't micromanage charging.

Back in the day, early battery tech such as NiCad was extremely sensitive to temperature and the chargers weren't designed with intelligence so they destroyed batteries with 'Fast' charging by overheating. Also, if you never let the battery discharge completely, the battery would start to form cadmium crystals and lower the apparent capacity of the battery. So, slow and deep cycles were the proper way to go. NiMH batteries were far superior and intelligent chargers were introduced but could still suffer the same symptoms of over heating with cheap chargers.

The idea that you can only trickle charge Lithium Ion/Polymer batteries is laughable. The rate of charge is controlled based on the temperature of the battery, if it heats up, the charging circuit clamps the current down, if it is cold it ramps it up. Also, contrary to wisdom applied to NiCad, deep discharges and full charges are harder on Lithium batteries than the earlier tech. In the mid ranges of charge the charger will go all out, when it reaches the top end it slows down to a trickle because the battery is more sensitive to stress at those charge levels. Conversely, if the battery is fully discharged, the charging circuit will start out with a trickle and speed up as the level increases.

On the G2, if there is high resistance across the data pins it stays in slow charge mode, most likely to protect USB ports not meant for charging, if there is low/no resistance it goes into fast charge mode, it thinks it must be connected a dedicated charger. If the charger or the cable gives the wrong setting to the phone the user is left scratching their head.

Luckily the AT&T car charger I bought with my Galaxy SIII works properly with my G2. Sadly the correct cable with my laptop, even with Lenovo's dedicated charging port, it stays in slow charge mode because it senses a data connection.

Edit: Also, the comment about not charging while the phone is on is another hold over from the NiCad days. Lithium technology could care less as all phones have regulated charging circuits now.
[Nexus 4 Q&A, Help & Troubleshooting] Aleziss:
Hello everyone,

Someone I am trying to help is reporting a weird issue with her Nexus 4 with video recording. The audio goes out of sync after a couple seconds in the recordings.

Here are some facts :

1) Issue arise regardless of which camera is used (front or back)

2) Issue arise regardless of the resolution setting. From SD to HD, always the same issue.

3) This is a stock device with no root

4) Device has been updated to the latest version 4.4. Whent from 4.2, 4.3 and 4.4.

5) Device has been reset to factory default and still the same issue

6) When rebooting the divice, if we go directly in the camera app without doing nothing prior that, the problem is less evident and it takes longer to start seeing de-sync audio from video

7) The issue is NOT there when the phone is connected to a MAC laptop through USB. In that case, video recording is perfect

8) No test done with a PC at this time

9) The sync issue is STILL there when the phone is connected with a USB wall charger. Only when connected to a MAC laptop makes the problem disapear.

I have seen a video of the issue and it is not a slight sync issue. It is really noticable only after 15 or 20 seconds of recording and the more you record, the worst it becomes.

I will try to have some youtube links so you guys can see the issue.

Any ideas ?
[Nexus 4 Q&A, Help & Troubleshooting] Aleziss:
Video example

Bump !

Anyone have a clue on what is going on ?

Here is a video example of the issue :

[YOUTUBE]nTRd9V8x5Cc[/YOUTUBE]

Thanks !
[Nexus 4 Q&A, Help & Troubleshooting] sky0165:
Since you're stock, you should go to apps and select the camera app and delete user data, cache and try again. If it still not working, i suggest you a full wipe, or even re-installing the whole system.
[Nexus 4 Q&A, Help & Troubleshooting] Aleziss:
Thanks for your reply, the clear cache and full whipe have been done and still the same issue...

Not sure though how to re-install the whole system though... I guess that mean I need to root since it is a carrier Nexus 4...

Oh and another note is that the phone is loosing track of time pretty quickly. If the phone is NOT on the network (airplane mode), it looses time. You can't use the alarm clock since that in 10 or 12 hours, the phone can get off by 2 hours !

Sent the phone 2 times for repair already and still the same issue. They always say everything is fine with it when there is clearly an issue with it. Not sure if it is a hardware issue or a software issue like you are suggesting...
[Nexus 4 Q&A, Help & Troubleshooting] Aleziss:
Great !

Of course it does help ! I will look into this carefully and thanks again for your help ! It's really appreciated !
[Nexus 4 Q&A, Help & Troubleshooting] Aleziss:
Fixed

Just a follow up on that issue to say that the nexus 4 had a problem...

After trying a big bunch of things/reset/procedures describe here, it never fixed the issue.

the whole main board was replaced and it fixed the problem so it was really a hardware issue.

It just took 3 time before they finally ack that there was indeed a problem. First to time in repair they said it was ok when it was clearly not specially when the phone time was desyncing so badly...

Thanks for all your input guys ! Really appreciated !
[Verizon Galaxy Note 3 Q&A, Help & Troubleshooting] fusen:
Hello,

I have a verizon note 3 with mi9

I rooted via kingo and tried to back up my efs via:

http://xdaforums.com/showthread.php?t=2447342

basically I forgot to install busybox, the process did not work, the script modified my phone's files but i'm not exactly sure which ones

for example in the phone directory i dont have files in /efs (http://www.note2forum.com/forum/gal...dden-menu-dialer-verizon-galaxy-note-3-a.html)

i wanted to enable the Hidden Menu (Dialer) on Verizon Galaxy Note 3.

So I have unrooted via Kingo app now. And I did a factory reset. I still do not see any files in the /efs folder on the phone

I want to know what I should do to fix the EFS files.

My phone still works to make calls and have internet, but I'm afraid to do anything further.

Thank you in advanced
[Verizon Galaxy Note 3 Q&A, Help & Troubleshooting] akellar:
You can't see efs without a root browser. Unlikely there ever was an issue.
[Verizon Galaxy Note 3 Q&A, Help & Troubleshooting] fusen:
Thanks, okay I rerooted the phone. I am using ES file explorer and I can see alot of files in the folder efs/ now. I'm guessing they are all there since my phone seems to still work.

anyways below is what the script I was using was doing, maybe someone can explain whats going on, and confirm stuff didn't get deleted. I have no idea whats going on there.

:BACKUP

CLS
[MENTION=279333]ECHO[/MENTION] *****************************************
[MENTION=279333]ECHO[/MENTION] * BACKUP EFS *
[MENTION=279333]ECHO[/MENTION] *****************************************

CHOICE /C YN /M "WARNING: Do you wish to Continue? (This will make EFS BACKUP)"

IF ERRORLEVEL 2 GOTO MENU
[MENTION=279333]ECHO[/MENTION] --- STARTING ----
[MENTION=279333]ECHO[/MENTION] --- WAITING FOR DEVICE

bin\adb wait-for-device
[MENTION=279333]ECHO[/MENTION] --- Backup efs image ---

bin\adb shell "echo | getprop > /sdcard/getprop.txt"

bin\adb pull /storage/sdcard0/getprop.txt

bin\adb shell "echo | getprop ril.product_code > /sdcard/version.txt ; getprop gsm.version.baseband >> /sdcard/version.txt ; getprop ril.serialnumber >> /sdcard/version.txt"

bin\adb pull /sdcard/version.txt

setlocal enabledelayedexpansion

for /f "tokens=*" %%a in (version.txt) do set "var=!var!%%a_"

echo %var%

bin\adb shell su -c "make_ext4fs -s -l 20M /sdcard/efs.img /efs"

bin\adb shell su -c "dd if=dev/block/mmcblk0p3 of=/sdcard/%var%EFS.raw.img"

bin\adb shell su -c "busybox tar cZvf /sdcard/%var%EFS.tar.gz /efs"

bin\adb pull /sdcard/efs.img

bin\adb pull /sdcard/%var%EFS.raw.img

bin\adb pull /sdcard/%var%EFS.tar.gz

bin\tar.exe -c efs.img >> %var%EFS.tar

bin\md5sum.exe -t %var%EFS.tar >> %var%EFS.tar 2>nul

REN %var%EFS.tar %var%EFS.tar.md5

bin\7za.exe a %var%EFS.zip %var%EFS.tar.md5 %var%EFS.raw.img %var%EFS.tar.gz getprop.txt

del *.img *.txt *.gz *.md5
[MENTION=279333]ECHO[/MENTION] -
[MENTION=279333]ECHO[/MENTION] -
[MENTION=279333]ECHO[/MENTION] Finished. Output file is %var%EFS BACKUP

) ELSE ( [MENTION=279333]ECHO[/MENTION] "ERROR: PACKAGING does not exist" )

pause

goto MENU
[AT&T, Rogers HTC One X, Telstra One XL] haleymama:
hi can someone please advise me where to go or what to do...here is my situation. I followed this tut which worked excellent in rooting my htc one x at&t : forums.androidcentral.com/htc-one-x/300735-t-one-x-root-boot-unlock-s-off-jellybean-3-18-ota-update.html

i wasthen going to install clean rom following this tut : scottsroms.com/downloads.php?do=file&id=455

after i installed the rom the phone rebooted but i saw htc logo followed by black sceen..nothing now and i have ben researching for a couple of hours now without a proper solution.. what i suspect is that the phone now does not have any os on it and i cant access the sd card to copy over another firmware. i am currently trying to put use ruu to install a rom but i suspect it has stuck on sending...

any ideas on what i can do? any help will be greatly appreciated
[AT&T, Rogers HTC One X, Telstra One XL] Heisenberg:
I'm guessing your phone is still s-on? If so you just need to flash the boot.img via fastboot. Extract the boot.img from the ROM zip and copy it into your fastboot folder on your pc. After you've flashed the ROM and/or gapps, reboot to bootloader and connect your phone, make sure it says fastboot on your phone screen. Then you can issue the following command:

fastboot flash boot boot.img

Now you can reboot your phone into the ROM.

PS. Please make sure you questions in the Q&A section in future, here's a link:

http://xdaforums.com/forumdisplay.php?f=1572

Sent from my Evita
[AT&T, Rogers HTC One X, Telstra One XL] haleymama:
thank you and sorry for posting in wrong location..i will try this and let you know..
[AT&T, Rogers HTC One X, Telstra One XL] haleymama:
hey thanks it worked,,
[AT&T, Rogers HTC One X, Telstra One XL] Heisenberg:
Great! You should probably get s-off, it's super easy and it means you'll no longer need to flash the boot.img via fastboot. It has some other great advantages too. Head over to the Rumrunner S-off site and give it a shot, it could only take a few minutes.

Sent from my Evita
[8125, K-JAM, P4300, MDA Vario General] generaljoe:
I have had 3 XDA Execs and two XDA Mini S devices.

I have connected them to a Toshiba laptop running the latest firmware and Windows XP SP2.

I have connected them to a Dell desktop running the latest firmware and Windows 2000 SP4.

In every case, I experienced the following issue - Activesync is unreliable. It will sometimes connect and do a full sync, but more often will fail part way through connecting.

Usually, it will fail to notice that the device has connected at all.

A reboot will usually make the Activesync start to work, but usually the connection is broken before the sync can complete.

I have tried the following:

Disable Windows firewall (no change)

Ensure no other personal firewalls are present (there weren't).

Use ActiveSync 4.1 and 4.0 (no change).

It is now at the point where my current Mini S can't even stay connected long enough to install Microsoft Reader.

3 colleagues with Dell laptops and Minis / Exec devices have also experienced the exact same issue.

Am I really the only one to have expeienced this chronic unreliability issue?
[8125, K-JAM, P4300, MDA Vario General] jbn:
MTU

There are some partially obscure references to the MTU size on the network interface that is created for the Windows Mobile device. Seemingly the default is a whopping 8000 but problems occur with anything over 5000 in practice.

I used DrTCP to identify and set my interfaces to 5000 and this improved stability somewhat but it is still a bit touch and go. Have been too busy to play with winding it down lower but I rather think this would help. I would certainly recommend that you give this a try.

Hope this helps!
[8125, K-JAM, P4300, MDA Vario General] generaljoe:
Thanks, I'll give that a go. 8000? Usually a TCP/IP MTU is more like 1500... [FX: shakes head]
[8125, K-JAM, P4300, MDA Vario General] Made_in_Brasil:
Usually a TCP/IP MTU is 1492
[8125, K-JAM, P4300, MDA Vario General] wsabido168:
Hi. I've had problems also with activesync with my XDAII (running WM2005c) and my laptop. I've discovered the problems with synching comes when you're using Outlook 2003 and they usually go away when you use Outlook 2002 or earlier.

Hope that helps. :)
[8125, K-JAM, P4300, MDA Vario General] motorola:
I am using Dopod838 TC version and Outlook2000 SR-1.

I also experienced some Activesync issue when reconnect to PC after the 1st sync-up(1st sync-up from reset always work). At reconnect and sync, my device go really really really slow, I have to do a reset to fix and sync again.

Upgrade to Activesync 4.1 and take care of the port does not help my case as I can sync once without any issues.

Recently i have installed an application call "Card Expert II" which allows me to switch between USB / Activesync mode. I notes CEII fail to switch to USB mode after disconnect from PC, but after sometimes it do. Then I realize probably something at the background of my PPC is still running which cause this issue.

I try to figure out what in between could help release the sync and at last I figure out if I check the SMS/Email on my today screen and close it again.... Card Expert can switch between USB/Sync mode again. I repeat the same trick and now it can sync without issue ....... Now I am 100% confidence my device will sync again after disconnect from PC.

Now whenever before I connect to PC, I would just click and close the SMS/Email on today screen... It's a bit annoying but this save me from reseting my device each time i try to re-sync up my device. Hope this help.
[8125, K-JAM, P4300, MDA Vario General] Paltkungen:
I have had the same problem with sync., the solution for me is to reboot my PC. So the problem must be there, and I have no clue how to solve it...
[8125, K-JAM, P4300, MDA Vario General] generaljoe:
My solution is to sync once, then do every other sync via Bluetooth, avoiding the dodgy IP over USB implementation entirely.

Maybe ActiveSync 4.2 will fix it...
[Android Q&A, Help & Troubleshooting] isephy:
To preface this, I'm not extremely experience with the terminology or the how-it-works of ROMs and the Android OS.

I am unable to flash the latest nightly or stable CyanogenMod or AOKP ROMs to my HTC One X (evita). However, I am able to flash Scott's CleanROM. I am using the lastest TWRP (2.6.3.0) version to flash these from my internal SD card, as this phone does not have an external SD slot. I have completely wiped my phone many times between installing roms and have formatted the SD card. I used the RUU for my device to install the default ROM and, afterwards, the CyanogenMod and AOKP ROMs still will not flash. I don't have any specific information on why they will not flash, TWRP just tells me that the process failed.

Thanks for any assistance.
[Asus Transformer TF700] groston:
All,

After having used this device for more than one year (just beyond the warranty expiration), we have found two issues:

The power button does not work properly - we seem to have to press harder, and in some cases, it seems to get stuck.

The machine keeps rebooting - this just started happening and occurs most often when using MyLibrary - the major use of the machine. Note that most items are library loans, i.e., have DRM.

Some more information regarding the crashing:

I tried to clear the cache, but all that shows up under the memory size is 'calculating' and the clear cache button is disabled. Simply looking at this information, not even trying to change anything, crashes the machine (and several times, I had to hard reset it to get it goign again)..

I have tried a cold boot, but that did not help.

The only thing I can think to try at this time is:

Factory reset

Start using a different read app - strongly considering Cool Reader

Is there anything else I can try before nuking the machine and starting over?

SPECS: 32 GB, Android V4.2.1, rooted - stock ROM