yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 7.7 Android Development] FernandoMiguel:
if you are powering the device it will NEVER happen.

i get two kind of serious issues.

one is the black dead screen with pegged CPU and high battery drain.

the other random reboots.

neither happens when charging. so neither will happen while connected to USB.

you could ADB wiifi debug it.. but if wifi fails, there goes your logs :\

I already tried several times to look at last_kmsg but nothing shows there.

one other issue: how many radio channels are enable on 2G?

i changed carriers recently (stupid SIM is 3V instead of the old 1.8V and uses more power) and while the previous had Edge coberture in the full country, this one fallsback to GPRS a lot. and it's slower than the other one even when they had GPRS.

it would seem there are less radio channels enabled. like only one, and it I get only 32kbit/s instead of 128
[Galaxy Tab 7.7 Android Development] matsuru:
Same here. At times my screen turn black and don't response to the power button. Tried pressing for a while until the screen turn on with a bit of lag. Then everything turns OK.

Sometimes the tab will auto restart suddenly. Doesn't happen frequently. Just once a while.

Other than these 2, all seems OK. Touch screen is responsive after new kernel flashed.
[Galaxy Tab 7.7 Android Development] CPmillenia94:
The main issue I'm having with the ROM and current kernel is how slowly apps are opening and actions are being completed. Scrolling is super smooth, but it just takes FOREVER to get things done. I will click on the chrome icon, and wait thirty seconds for it to start running. Then I click a YouTube video and I wait for thirty more seconds for that to open. Anyone else experiencing this?
[Galaxy Tab 7.7 Android Development] jkrell:
Have you tried the Seeder app available here in XDA?

http://xdaforums.com/showthread.php?t=1987032
[Galaxy Tab 7.7 Android Development] CPmillenia94:
^ very useful! Seems to be working pretty well! Still room for improvement though.. I may just be spoiled by my galaxy nexus.
[Galaxy Tab 7.7 Android Development] scubajeff:
the draining bug never happen when it's charging.
[Galaxy Tab 7.7 Android Development] teiglin:
Is there a utility that would allow you to automatically log dmesg over wifi or something? Might still not help because it seems to only happen on deep sleep but might be worth a try?
[Galaxy Tab 7.7 Android Development] FernandoMiguel:
been testing the new kernel all day.

results are disappointing :(

already had to charge my tablet twice.

yesterday with much heavier usage it lasted 6h with 4h screen on. today 5h with 2h screen on

on previous builds i used to managed to get 15h with 4h screen on.

even at 1400MHz, apps are very slow to start and be ready to use. didnt used to be like that.
[Galaxy Tab 7.7 Android Development] daniel_hk:
Sorry, the bug is quite random. Not cpu related. I think it depends on the quality of wifi connection and only occurs in sleep. Today, I still have 68% after 19 hrs. but sometimes only last for 12....

I've a job in hand. Will continue in a few days... :p
[Galaxy Tab 7.7 Android Development] FernandoMiguel:
no need to be sorry.

me (and everyone here) appreciate your work immensely.

if not for you, many of us would be on 4.0.4 or non functional CM10
[Galaxy Tab 7.7 Android Development] gazjglusk:
I think it would be good idea if everyone mention which version and model of Tab you are using. Some of these bugs may be model specific.

I have HK P6800 and have been running cm10.1 of 20 april and kernel of 29 april for 3 days .

I did a fresh clean install of Rom and Gapps and then Titanium restore of MISSING apps only.

I have not had any of the bugs mentioned above ..in fact NO BUGS at all.

I only turn on Wifi when I need it.

Dolphin, Yahoo Mail, Youtube and Google Earth all respond immediately.

I use Nova desktop.

GPS fixes in 15 seconds. Phone is fantastic now.

many many thanks to Daniel
[Galaxy Tab 7.7 Android Development] abelong:
Hi Daniel ,my tab running cm10.1 ,with latest ROM n kernel , seem like all OK, only issue with DSP manager, not working at all, sound quality getting worse , after flash new kernel.
[Galaxy Tab 7.7 Android Development] sergani:
Hello Daniel, all,

I've been having one problem since I purchased this device (p6800) one year ago, SODs. They're intermittent and don't always happen after the same events, I just have to put it to sleep :)

I've literally tried every single ROM but i kept getting the same thing.

The best thing I cane upon, was ROMs that allow overcoming etc.. Started with EzyICS over stock ICS then moved to CM10.1 when that was introduced. I use SetCPU as the user land software for this.

My SODs are much less now, but they still occur...

My questions are, is this something that could be fixed? How? If not, can it be bypassed? Again, how? Because I'm not sure I'm setting up SetCPU correctly :)

If this is something that's caused by some ill kernel code, can you provide a deep logging level kernel that I'll flash, connect my tab to a PC and leave it for days? Once an SOD happens, I could then provide the logs etc..

I really like the device, but can't always use it this way :(
[Galaxy Tab 7.7 Android Development] long6688:
The sod is some thong with jb and ics. I have many other tablet that also have this problem, but somehow they managed to fix this problem. Dont know how, but it is something to do with wifi as well
[Galaxy Tab 7.7 Android Development] lomniom:
And when you come back with full energy, please have a look on the HDMI issue too! :angel:
[Galaxy Tab 7.7 Android Development] long6688:
Can you stop request him? Do it yourself, he still have a lot of things to fixed and just for your own benefits, you disregard everyone else of a working kernel
[Galaxy Tab 7.7 Android Development] sergani:
Thanks, but it's not always a wifi problem. SODs come even when wifi is off.
[Galaxy Tab 7.7 Android Development] long6688:
Haizzz, whats wrong with this guy, try airplane mode see if the sod persist? If you dont know about technology dont pretend to know and talk

Now i learnt about arrogant and why some of the incompetent chef get it =))
[Galaxy Tab 7.7 Android Development] sergani:
Whatever :)
[Galaxy Tab 7.7 Android Development] Sab3elbromba:
+1
[Galaxy Tab 7.7 Android Development] daniel_hk:
Don't worry. Already on my list!
[Galaxy Tab 7.7 Android Development] CPmillenia94:
Currently at 15% with 20h 30m on battery and 5h 10m screen time. Not complaining! For those of you like me using the p6800 as a WiFi only device, try putting it on airplane mode and then turning on the Wi-Fi to essentially eliminate mobile networks altogether.
[Galaxy Tab 7.7 Android Development] Edwrib:
I installed supersu to see how behave the new superuser menu in settings of cm, tested then uninstalled using the option to clear su to use another su-app, after reboot all apps are automatic granted the su rights.

How to use again the default superuser integrated in cm?

Ty.
[Galaxy Tab 7.7 Android Development] FernandoMiguel:
not sure if this is helpful but here goes.

there is a long old known bug where Android framework does not support detecting and changing to a better WiFi AP when signal is too low.

It's missing support on the drivers. some OEMs add it, but it's not there on stock android nor CM.

I have several APs at home.

Recently I decided to test a Market app that monitors WiFi signal (http://www.appbrain.com/app/wifi-roaming-fix/com.heleron.wifiroamingfix) and changes to the best AP.

Ever since, I've had many many many less random reboots or black screen of death (still have a few of both, but funny enough the reboots happen more often when on other single AP networks than at home).

It leads me to believe that the problem is in either a wifi driver bug or power management when signal gets too low.

Another thing: with the test kernel it takes WAY longer to charge. it also seems not to be able to charge when connected to an USB port. the older/"stable" kernel charged just fine, I could see the percentage change.
[Galaxy Tab 7.7 Android Development] wintermute000:
Guys I need help.

I was running daniel's latest CM10 and decided to roll back to stock ICS.

I used odin 1.85 and flashed a tar that I had used before several times

P6800OXALQ1_P6800XXLQ1_HOME.tar

stuck on boot logo.

I downloaded below and tried again with odin, stuck on bootloop again.

P6800OXALQ2_P6800XXLQ2_HOME.tar

Can someone help??? What can I try next?
[Galaxy Tab 7.7 Android Development] daniel_hk:
You better flash a 3.2 rom first. The kernel of 3.2 has no eMMC brick bug. After flashing the 3.2 rom, you do a factory reset in the recovery. Then you flash the stock ICS.

Good luck!
[Galaxy Tab 7.7 Android Development] long6688:
Odin, tick repartition, you will be fine :)
[Galaxy Tab 7.7 Android Development] daniel_hk:
Why repartition?

This option is when you have corrupted partition info and you need to recreate the partitions with the PIT file. The option will automatically be checked after you select the pit file.
[Galaxy Tab 7.7 Android Development] long6688:
I want ppl to break their devices
[Galaxy Tab 7.7 Android Development] Romano2K:
Hello!

My GT-P6810 is currently running latest locerra's CM 10.1 build (01/05/2013). I still have a few issues with battery life and Wi-Fi so I'd like to update to a newer ROM. I already bricked my 7.7 by flashing and not wiping it so this time I'm asking.

First, what's the difference between those two ROMs?

And can I flash from locerra's CM 10.1 latest build (01/05/2013) to one of those two different CM 10.1 builds without wiping everything? If yes, what do I need to wipe anyway?

Thank you in advance! I still love my Galaxy Tab 7.7 more than any other Android tablet on the market thanks to those stock Android ROMs! :)
[Galaxy Tab 7.7 Android Development] GNUDroid:
tried to flash latest 07/05/13 rom from prerelease. downloaded 2 times, always error in twr recovery that flash failed. reboot brings me back to the old rom.

can anyone confirm, that downloads are ok? is it possible to additionally upload or post md5 checksums for the rom zips?

nevertheless my battery lifetime is very nice, i want to test daniels new rom. by the way concerning wifi drain: i always set wifi scan interval from 15 to 360 in build.prop. both mobile i9100 and tab 6810. - safes battery and i never had connection problems.

very happy that you daniel continiously stay with us with your great rom support!

send from my 6810. community and sharing are freedom are open source.
[Galaxy Tab 7.7 Android Development] long6688:
The latest is the experimental, the other are stable
[Galaxy Tab 7.7 Android Development] swissd8:
Flashed latest test build for the p6800 successfully, unfortunately I still get the frozen tab with battery drain bug.

I can recreate it easily by: launching a torrent download (ttorent), turning off the screen and wait a few minutes, then the tab wont wake up anymore and heat up while draining the battery.If I do the same with the tab charging this never happens, so it should be a power management issue.

I never had this issue with stock rom or PA 2.x.

But I still keep faith in you Daniel to find the cure, in the meantime I only use torrent when plugged in and without torrent It happens much less often. The rom works great outside of this issue, very smooth compared to stock ICS.
[Galaxy Tab 7.7 Android Development] thepsen:
Where can I get 7/5/13 CM10.1 download link. Only see 20/4/13
[Galaxy Tab 7.7 Android Development] daniel_hk:
pre-release area, link at the bottom of #1 post.
[Galaxy Tab 7.7 Android Development] daniel_hk:
If you are in 7/5/2013, I don't know why. I test download for a few time and its OK now. I'll try ttorrent later.

Thanks for your report.
[Galaxy Tab 7.7 Android Development] thepsen:
Downloading now, will report testing . thanks.
[Galaxy Tab 7.7 Android Development] daniel_hk:
I just open the .zip. It seems ok. I'll download and check.
[Galaxy Tab 7.7 Android Development] edan1979:
just complete my download. unzipping the files to see got any problem... seem none... flashing...
[Galaxy Tab 7.7 Android Development] gazjglusk:
Hi, Using uTorrent on cm10.1 of 20 april and kernel 29 april, I just tested and had similar to you. First time I turn off screen, the Tab restarted by itself after 2+min. Second time after about 3+ min, the screen would not turn on and I assume tab had turned off. There was no overheating.

I then flashed cm10.1 of 7 may over the above and tried again.

This time after turning screen off for 4min, it turned back on OK. ..Off again and turned back on after another 4 min. Looks Good.

By the way Daniel, I did not reflash kernel of 29 apr ...is there any need to do this ?

Thanks again to Daniel
[Galaxy Tab 7.7 Android Development] daniel_hk:
No need now. Latest build already include the changes in 29APR kernel.

Cheers!
[Galaxy Tab 7.7 Android Development] gvoima:
Does this release include a different bluetooth stack than what the android JB uses by default?

It seems that it's a complete opposite with the avrcp profile. Song metadata works, but the control keys doesn't.

And with JB stack the metadata doesn't work, but is otherwise OK.
[Galaxy Tab 7.7 Android Development] Romano2K:
Is it the answer to my question about the two ROMs?

Anyway what do I absolutely need to wipe before flashing?
[Galaxy Tab 7.7 Android Development] daniel_hk:
I continue locerra's cm10.1 when he is busy at school. Yes, I've changed a few things but it is still the cm10.1. The latest version is in pre-release.

If you are from earlier cm10.1, you probably don't need to wipe data/factory reset. Just wipe the caches will be good enough.

You are safe in wiping as long as you're NOT in the stock ICS kernel/rom.

Good luck!
[Galaxy Tab 7.7 Android Development] Romano2K:
Thank you for your quick answer, and for your work!

I'm still not sure to understand the difference between CyanogenMod 10.1 (4.2.2r1) 7/5/2013 and CM10.1 20/4/2013 though. Which one is safer?

I flashed locerra's CM10.1 the standard way, there's no reason I should have the stock ICS kernel or ROM, right? I think my tablet came back from the customer service, after I bricked it, with stock 3.2. Is there a simple way to check this?

Lastly, is there a safer way than another to install CWM 6.0.3.0?
[Galaxy Tab 7.7 Android Development] daniel_hk:
I was also a victim of eMMC brick bug. I understand why you're so concern about "safe". If you're already in cm10.1 so nothing to worry about now. Naturally, I suggest you flash the latest 7/5/2013 build.

I'm not quite sure about your situation...:confused:

If you are in CM10.1 now, you don't have to worry about anything. You don't need to install the new CWM if you had already successfully install a CM10.1 before.

If you just got you tab back from service, most likely has the latest ICS. You can check it at Settings > About.

Installing from ICS, you have to flash a custom recovery first (CWM or TWRP). To avoid brick again, you may follow the steps in (FAQ) #2 post. (in case you ask... cm10.1 has no AROMA version)

Good luck!
[Galaxy Tab 7.7 Android Development] Romano2K:
Thank you again for your answer.

When I got my GT-P6810 back from after sale service, I'm pretty sure it was running stock 3.2. I then followed a guide and flashed directly latest Iocerra's CM 10.1 ROM, which is still running at the moment.

I don't know what is an AROMA version. Do you have a link to provide to a guide on what it is, please? :)

I still haven't really understood what's the difference between the two "branches" on your first post, can you explain me in a few words?

Anyway I'll flash the latest build later and report back, thank you very much again for your work and your help. :)
[Galaxy Tab 7.7 Android Development] Edwrib:
I noticed that latest stable, the movement sensor keep moving by itself to left, if install '3D live wallpaper' (the one you chose a picture and the picture move following you movement) the picture don't stop moving to left.
[Galaxy Tab 7.7 Android Development] edan1979:
its just a graphical installer running from recovery. Last time daniel make it on CM10 version. Old release.

The one which is currently being release in the pre-released area dated 7/5/2013 is a new build that need to be test. Kind of like beta.

The one dated 20/4/2013 is old stable released. A lot of tester verify that we got less problem with it.

IMHO the new 7/5/2013 version is stable enough for daily use.
[Galaxy Tab 7.7 Android Development] daniel_hk:
OK, you got your tab back already and now you're in CM10.1. That's easier.

If you have time to read the post, all the pass history and change log are there.
[Galaxy Tab 7.7 Android Development] daniel_hk:
Thanks, which version? please provide the build date.

At 20/4 and before builds have wrong mpu parameters. Don't know if it caused that.
[Galaxy Tab 7.7 Android Development] Romano2K:
This time I get it, thank you very much! :)

I did it already but I was a little bit confused by the amount of information there is in your first post.

I'll upgrade later today and let you know if it worked without wiping data as intended. :)
[Galaxy Tab 7.7 Android Development] Sab3elbromba:
I've been running the latest CM10.1 for about 8 or 9 hours now and generally the performance is much better than the PA dated 21st of April, device response is faster and games run smoother and voice clarity in gsm calls is better. I can't really tell if battery drain is any better yet cause I've just calibrated my battery and waiting for full discharge.

Forgot to say that I did a dirty flash with clearing cache and dalvik cache.
[Galaxy Tab 7.7 Android Development] Edwrib:
12/4.

Tks.
[Galaxy Tab 7.7 Android Development] edan1979:
guys... try the new buzz launcher... its in beta but kind of nice...

https://play.google.com/store/apps/details?id=com.buzzpia.aqua.launcher&hl=en
[Galaxy Tab 7.7 Android Development] Edwrib:
Just flashed 'instable' 7/5 and this is fixed, thank you very much!
[Galaxy Tab 7.7 Android Development] keewee23:
i have most weirdest tablet ever, Samsung galaxy GT-P6810, it's almost dead,

- i can get into clockwork, can load roms, i tried only paranoiaandroid and this cyanogen 10.1,

- both are stuck at boot, boot loop, how much do i need to wait for logo to finish? i have waited for half an hour and nothing

- with odin i can only inject clockwork mod and nothing else,

-i tried with odin stock roms, ics 4 and 3.2, odin says fail nand write bla bla,

-KIES does not recognize GT-P6180 tablet, i tried upgrade firmware and when it says enter serial number it wont accept, so i'm stuck in all that,

whole day i'm trying to fix tablet with informations from xda and google and nothing, i can only turn tablet in download mod, clockwork mode and wait boot loop on cyanogen rom, help is really needed, thx
[Galaxy Tab 7.7 Android Development] swissd8:
I am using 7/5 build and i confirmi still get reboot at least when i turn tab off after a few minutes with ttorent on. I will try with another client maybe will be different
[Galaxy Tab 7.7 Android Development] wintermute000:
Hi

I recovered, it was.....

clear cache in stock recovery. (that the odin must have loaded)

Prior to wiping in odin, I cleared data and cache in CWM so I was not afraid of brickbug.
[Galaxy Tab 7.7 Android Development] edan1979:
While waiting samsung so call jb update... playing with the new launcher... buzz launcher...
[Galaxy Tab 7.7 Android Development] daniel_hk:
You probably got a corrupted data partition. I've one in hand from a friend asking me to help fix it. Same situation. Even though I have shorten the partition (with another PIT) to pass the corrupted area, It can boot for a while and then hang.

This is most likely the victim of eMMC brick bug. You have to replace the chip/board...

You can try the following links tool to check for bad blocks...

http://xdaforums.com/showthread.php?t=1667886

Good luck!
[Galaxy Tab 7.7 Android Development] long6688:
The guy with torrent thing, i pity you, your power button stuck thats why it reboot, nothing to do with software, cant you recognize -_-"
[Galaxy Tab 7.7 Android Development] daniel_hk:
That was a true report!

The bug is still there. Mostly occurs when downloading a big file. Now I know how to repeat it. Thanks to swissd8! :thumbup:
[Galaxy Tab 7.7 Android Development] FernandoMiguel:
twice already, I've had /data partition corrupted on my device.

usually i format it via adb and fsck and am good to go.

i need a newer SD
[Galaxy Tab 7.7 Android Development] swissd8:
I can confirm the bug of black screen or reboot is the same with utorrent as well. It's ok i got used to it anyway by only torrenting when on charge.
[Galaxy Tab 7.7 Android Development] Romano2K:
I'm running the latest test build since yesterday night, it works perfectly. I wiped cache, dalvik cache, flashed the ROM then latest Google Apps and rebooted. Thank you all for your help!
[Galaxy Tab 7.7 Android Development] sbalu:
Is there any news about your tab Daniel?

---------- Post added at 06:57 AM ---------- Previous post was at 06:54 AM ----------

TWRP works on P6810 also.
[Galaxy Tab 7.7 Android Development] carlo67:
I tried to flash the twrrp 3.2.1 but it didn't flash http://imageshack.us/a/img252/4495/screenhunter01feb121734.gif
[Galaxy Tab 7.7 Android Development] sbalu:
I did it with mobil odin without any problem.Try it!
[Galaxy Tab 7.7 Android Development] daniel_hk:
I remember that the image file was buried in a series of folder inside. May be Odin doesn't recognized. I also use Mobile Odin then.

I build a simple one for you in attachment. See if it work for you.

Goodluck ！
[Galaxy Tab 7.7 Android Development] carlo67:
I haven't use the mobil odin before

I got the odin3 v1.85 for windows
[Galaxy Tab 7.7 Android Development] daniel_hk:
I don't have the Tab in hand now, just in memory.

Did the app start? If nothing goes wrong, there will be two boxes at the bottom for In and Out byte count.

There is a profile something like "GalaxyTab 7.7", did you choose it?

No security too.

Goodluck !
[Galaxy Tab 7.7 Android Development] carlo67:
question

with Odin on pc ?

thank you for all help:good: because I really want to have the TWRP

the TWRP xda forum didn't help me :rolleyes:
[Galaxy Tab 7.7 Android Development] sbalu:
Maybe did not recognized my question previously. Is there any news about your tab Daniel?
[Galaxy Tab 7.7 Android Development] daniel_hk:
Sorry... I miss it:p

No luck for the JIG cable too...

We are having the Chinese New Year holiday. I'll send it to the dealer after the holiday (I suppose they'll open on 14/2 ).

Really appreciate your concern! Thanks!
[Galaxy Tab 7.7 Android Development] carlo67:
question

with Odin on pc or mobil odin?
[Galaxy Tab 7.7 Android Development] daniel_hk:
Either one will do. I have tried both before.

Goodluck !
[Galaxy Tab 7.7 Android Development] carlo67:
wow thank you very much
[Galaxy Tab 7.7 Android Development] sbalu:
The problem is really serious, bad luck, than good holiday for you!
[Galaxy Tab 7.7 Android Development] carlo67:
now how to restore the /data partition ?
[Galaxy Tab 7.7 Android Development] daniel_hk:
I don't know if TWRP can read the backup file of CWM, probably not.

You have to restore to cm9 with CWM first. Then backup it in TWRP for later use. This time is not applicatbe.

After you restore to cm9, the /data is there. You may flash the AROMA version directly to test if widgets preserved.

Don't think that you have waste time for these, you've learn alot during the course. :)

Goodluck.!

PS.

In the Backup of TWRP, you can find the partitions in checker boxes, just select the partition(s) you want to backup.

Similar selctions will be found in resotore.
[Galaxy Tab 7.7 Android Development] acc_kareemomar:
Re: [ROM][p6800/p6810/i815] Jellybean Custom ROMs (9/2/2013))

i am talking about this app (paTether.apk) on pa2.55 and also does not work

Please help daniel
[Galaxy Tab 7.7 Android Development] daniel_hk:
I gave you a reply on post 46:

repeat:

I don't have the Tab in hand now, just in memory.

Did the app start? If nothing goes wrong, there will be two boxes at the bottom corners, for In and Out byte count.

There is a profile something like "GalaxyTab 7.7", did you choose it?

No security too.

Goodluck !