yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab  Android Development] crisvillani:
So the kernel is pretty stable , all sensors are working even gyroscope , only thing is the boot screen which doesnt really matter, grest job dude!
[Galaxy Tab  Android Development] MaxiJavi:
I can confirm that my JME v2 +LF was wiped with this.

Good excuse to upgrade everything :-)
[Galaxy Tab  Android Development] antiochasylum:
Tell is what you did and what you used to flash it.
[Galaxy Tab  Android Development] rmanaudio:
Used Odin 1.7...repartition not selected (Default)...select kernal as PDA and flash! DONE.

Did this atleast 5 times...with 3 different ROM flashing in between and still nothing got wiped. All my apps and data were still there on my internal SD and external SD. Also my phone settings and Launcher Pro was even the same.

So...i dont know what is going wrong for you guys...no issues here.
[Galaxy Tab  Android Development] antiochasylum:
Just did exactly this and worked perfect. No wipe or anything. Booted right back up at 1200mhz showing in SetCPU.

Its ALOT most snappy :)
[Galaxy Tab  Android Development] doloop:
I did nothing wrong. just and only flashed your zimage with heimdall. Didn't boot. reflash previous zimage didn't boot either: /data became unmountable according to recovery. So i Reflashed a rom (still no repartition used) , then found my sd card is wiped.

Perhaps this has something to do with the extra file system you put in your kernel ? ext4 module usage seems to be a trigger to sdcard wiping...
[Galaxy Tab  Android Development] MaxiJavi:
I did an install of JME v4 ...

Tab is fast, but I've had two lockups when doing different things.

EDIT : Changed to V2 and eventually NOOP (because it seems faster), and I have had no issues so far

Thanks !!
[Galaxy Tab  Android Development] Body:
Well ... I can not install any versions ..... tried with Odin and PDA Phone and restarts at the phone screen and computer ....... Heimdall and also tried with no restarts, gets stuck in same screen.

Roto JME'm using V4.
[Galaxy Tab  Android Development] jamesbond007uk:
Have you have locked bootloader? How did you flash your phone when your phone doesn't start anymore?
[Galaxy Tab  Android Development] MaxiJavi:
I spoke too soon ... It locked up again :-(
[Galaxy Tab  Android Development] TheGrammarFreak:
Are we likely to see overvolting in a future release?
[Galaxy Tab  Android Development] Skimi:
I can´t install it... i get fail in ODIN 1.7...

I have protected bootloaders could this be the problem?

EURO GSM GALAXY TAB (Portugal)
[Galaxy Tab  Android Development] Body:
I can flash it normally with the screen of the phone and computer.

my bootloader is not protected.
[Galaxy Tab  Android Development] hburn:
I did try this kernel with a gt-i9000m tablet with xxjme (roto v4) and i can confirm it totaly wipe my internal sd and even remove market and more apps i had to flash back rotov4 over it
[Galaxy Tab  Android Development] antiochasylum:
Dont know what you guys did. However did not wipe anything with me. Something has to be with the tab version I bet.
[Galaxy Tab  Android Development] MaxiJavi:
I've had to give up on this kernel :-(

Lockedup solid twice in NewsRob while navigating through the app.

The final time on completely stock settings (voltage, scheduler, etc).

And stock JME V4
[Galaxy Tab  Android Development] hburn:
its sure the problem is related to the tablet itself because i know how to flash a kernel . . . And this one is not to try on bell tablet
[Galaxy Tab  Android Development] antiochasylum:
Not doubting your ability however they are a ****LOAD of different versions of tabs :P

I see V2 has been uploaded. Does this remove the crappy TMobile boot screen? Lol. Being as I have an ATT tab its looks kinda funky!
[Galaxy Tab  Android Development] hburn:
V2 still have t-mobile horible bootscreen. . .
[Galaxy Tab  Android Development] killster:
i flashed using odin selecting pda as instructed, comming from Roto's JME V4

all worked great, but i lost marketplace and all google applications.

was that supposed to happen?

am i just a noob that didnt read all the screen somewhere?

i did NOT check partition in odin, 1.7 btw...

works great, stable and all, but market place would be nice...

and droid explorer no longer see the device.. yes debugging is checked

thoughts?

thanks in advance,

killster

i have since reflashed JME v4 and the world is a happy place but i want to use this kernel, so any advice would be pimpage.

Att, galaxy tablet. :cool:
[Galaxy Tab  Android Development] crisvillani:
Use CWM to make a backup , save backup on desktop , then flash kernel, if everything gets wiped boot into CWM then go to backup/restore, pick advanced restore then restore system, data and cache, this basically gives u all ur systems apps, and downloaded apps, it saves lots of time : )

Sent from Overclocked Galaxy Tab.
[Galaxy Tab  Android Development] antiochasylum:
I flashed on JK5 stock firmware with Odin. Not roto jme. Maybe having the jme software has something to do with loosing the Google applications.

Edit: stock jk5 rom, usdm att tab. Flashed on Odin 1.7 PDA no repartition. No wiping. Tab runs like a champ :)
[Galaxy Tab  Android Development] jamesbond007uk:
My internal sd was empty so restored the data. Now de tab os working for four full hours without a problem.

My tab is an UK tab.
[Galaxy Tab  Android Development] kay_kiat88:
hi there is the market apk available in v2? read from above that in v1 it'll be wiped.
[Galaxy Tab  Android Development] natious:
Isnt it possible to replace the bootloads with the stock samsung one?
[Galaxy Tab  Android Development] jamesbond007uk:
my market is working. I used a restore from old backup. After that I had to restart because of lots of errors.

know non any error seen yet!
[Galaxy Tab  Android Development] jongilluley:
Ive been using this kernal on my uk tab now for 2 whole days and have it scaling via setcpu. The tab has never hung or rebooted whilst using this kernel and the tabe has run much much quicker.

Battery life seems about the same as before as i set setcpu to scale back to 400mhz max when screen off and max cpu of 800mhz when battery is less than 25%!

This is a perfect set up for me in conjunction with adw ex and lcd density of 160 my tab is looking sweet as lol.
[Galaxy Tab  Android Development] jamiemac1977:
Thanks for letting us know, i'm holding off for reports of usage on UK tab's before i try this (on rotoJMEv4 at the moment).

Looks like it's worth a shot eh.

Appreciate you posting what your experience is, the more that do so the more that can jump in with confidence i guess. :D

Was yours unbranded from Tesco like mine, or do you have the Carphone Warehouse version? (or others similar).
[Galaxy Tab  Android Development] jamesbond007uk:
I bought mine from Currys UK. No problem at all. The TAB scales the cpu speed excellent.
[Galaxy Tab  Android Development] jamiemac1977:
Thanks, that's good to know. I will wait tonight for any "noooooo .... mine blew up ... dont do it" posts and if none by tommorrow i will have a go in work.

Again thx for posting your experiences, very helpful :)
[Galaxy Tab  Android Development] kay_kiat88:
haha. It's good to be holding euro tabs huh as you can check out for "noooooo .... mine blew up ... dont do it" posts. damn i have an asian tab. and I don't see any from my country doing all these flashing of roms and kernels and posting the results here. (maybe they do but they don't share :( )
[Galaxy Tab  Android Development] TheGrammarFreak:
Mine blew up. ;)

Nah, jokes. It works fine for me too ;)
[Galaxy Tab  Android Development] Body:
it worked well, after using the application chanfire to restore the bootloader. But the only problem was that erased all my SD.
[Galaxy Tab  Android Development] richardtrip:
You can limit the cpu with setcpu to 1000. If you have no lockups @1000 then it's just the cpu that can't handle the 1200Mhz.

Could you try that? (i can make an extra version with for example 1120Mhz when you have no lockups @1000Mhz)
[Galaxy Tab  Android Development] jongilluley:
Ive had no hang ups using v1 kernel on the roto jme v3 firmware. Ive got setcpu scaling up to 1.2ghz and no lockups or hangs or restarts.

Ive got a uk tab bought unbranded from.carphone warehouse.
[Galaxy Tab  Android Development] kay_kiat88:
Okay found a prob.

Flashed the kernel and wifi is not working. my wifi is on and it can't pick up my home's network. got back wifi after flashing back rotojme4

Oh and erm. doesn't wipe sd :D

flashed from rotojme4. asian tab.
[Galaxy Tab  Android Development] richardtrip:
all cpu's differ. Some can't handle 1.2ghz.
[Galaxy Tab  Android Development] Body:
Hello, I've tried everything here, I thought my guide had become a brick again. My guide had signed the boot, but with the chainfire tool can now install this kernel. My impression is that my guide is very fast, stable system boot time, it was much better, without fail, there is no incompatibility that is, to me is great.

Thank you for your work Richadtrip.

I did the upgrade by Odin pda tab, and when it cleared my memory.

My tab is euro.
[Galaxy Tab  Android Development] ayman07:
guess it happened to me too. lost apps and internal sd wiped and i dont have any of the gapps....great.
[Galaxy Tab  Android Development] leetut:
any chance of a guide in english!

post 1 has gone way over my head

a n00bs guide telling me exactly what to do would be great

and what is a camera key/backlight ?
[Galaxy Tab  Android Development] NeidRider:
Yap, same just happened here. All my apps gone, sd formatted (=> so all backups lost as well). And in addition I got a terrible T-Mobile logo on boot.

Will flash back something useful.
[Galaxy Tab  Android Development] TheGrammarFreak:
?? It is in English.

Camera = circular thing at the top left of the back of the device

Key backlight = the light behind the keys at the bottom of the device

Download the kernel

Use 7zip (or similar) to extract the tar file (you'll be left with a file named zImage)

Reboot to download mode

Use heimdall for flash this file as a zImage

Enjoy
[Galaxy Tab  Android Development] dansus72:
Whats the best way to backup the rom?
[Galaxy Tab  Android Development] jamiemac1977:
I backed up with titanium backup (not a full roto backup as i am far too lazy ^^). and now booted up into this kernel.

I had to quickly pop into recovery mode and do a factory wipe and reboot (as it was not booting). i am now restoring programme backups and will update later how it's all gone.

I used Odin 1.7 put the .tar in PDA and made sure partition was NOT ticked (is not by default anyway).

Job done for now, will let you know how well it is on mine (Tesco UK tab on RotoJMEv4).

Thanks for all the help and advice everyone, lovely community here :D

EDIT: all backups installed, email accounts all there, games there (with saved games intact) ...Will continue to search for things that are broken incase it helps.... First time using Titanium and wow, seems good eh :)

EDIT2: on a reboot after the lockscreen displaying for a moment the screen goes blank. I guess this is either a launcher default problem, and/or the restore of the security settings for the lockscreen. I will factory reset and update. (i am really bumbling about seeing how to do all this, pretty noob here ^^).
[Galaxy Tab  Android Development] dansus72:
Thought Titanium was for backing up apps not roms. Can it back up entire image too?

I have the Tesco sourced Tab too, will wait till i have a clean backup as ive already killed one Tab. (Orange)

Ive done a cwmod backup, i read i can use this to reflash with Odin/Hemi but not sure which to use. (System.img?)
[Galaxy Tab  Android Development] TheGrammarFreak:
Titanium backs up apps and their data
[Galaxy Tab  Android Development] jamiemac1977:
Thanks for answering that ;)

i'm only bothered about app and app data, and this way i get to pick one by one what i want to restore ...(so i can back up all but what has problems).

I've now rebooted fine after setting no lock screen and doing jsut the apps (not system apps).

I will work one at a time until i find the suspect ...email first as that saves ALOT of time for me. (infact email is the last "must install" for me, but i'll try find what apps don't restore well so i know what to avoid ^^).
[Galaxy Tab  Android Development] aguiamaster:
this is only for t-mobile ? what rom do i have to have ? rooto jme ? or ?
[Galaxy Tab  Android Development] jamiemac1977:
i was on roto JME v4 ...but i dont think you "have" to be. it's for any GSM tab as far as i can tell. (it's just the kernel).

To be honest, it doesnt seem that much faster, i will try confirm all is OK in setcpu at the end of the month (too skint to buy on market now). It does seem stable and boots up OK now though.. still some more to restore though :)

It does boot with a T-Mobile logo though, kindof funny for my "unbranded" tab hehe. I am guessing next its custom ROM loadscreens ^^

Let me know if you want any images done for sucha a think (if it's easy to replace).

EDIT: i found the xda setcpu and used that it's definately at 1.2ghz ^^ ... thanks (i will buy the setcpu on market on payday i assure).
[Galaxy Tab  Android Development] ayman07:
has anyone compared using this kernel and the one that modaco wrote? his isnt overclocked but people are getting quadrant scores near 2000. i really dont care about numbers, im more interested in performance.
[Galaxy Tab  Android Development] antiochasylum:
Its not really any faster. Flash the Modaco EXT4 kernel and Rom, then you will see some speed and smoothness in a rom. and its not OC'd

edit: its really only about saying you have an OC'd tab lol. Thats all it provides honestly, and maybe a 120 boost in quadrant scores.
[Galaxy Tab  Android Development] jamiemac1977:
Thanks for the advice, i also had it lock up on me on the way home on the tube (first time i seen a tab freeze o.O) ... music most of the way (on winamp) and then really loud stuck noise lol ....made me jump xD

I also had the live wallpaper running Light Grid Pro (latest version) and the following widgets open: Power Control, App Manager (samsung), Facebook, Google search, Winamp (x2 with album art), Last FM widget and various icons.

...I'll try the other roms out maybe ...is that one you mention a kernel like this that i can run on roto JME (v4)?? or is it a full on rom?

EDIT: Read up on that and seems good. But i do not have a memory card yet (will order one end of month if needs must). Doest the EXT4 conversion make the speed difference? or wil the RFS be as quick? TIA! :)
[Galaxy Tab  Android Development] Skimi:
Is it possible to change the t-mobile logo to something like a samsung logo from boot?
[Galaxy Tab  Android Development] richardtrip:
What you see is a boost in io (ext4). Guess we need a hybrid initramfs that can do both (RFS and EXT4).
[Galaxy Tab  Android Development] jamiemac1977:
awesome stuff, thanks for clarifying that.

I'll get a mem card and convert in the meantime while it all develops. Love the work you guys are doing.:)
[Galaxy Tab  Android Development] antiochasylum:
You will notice speed difference in an ext4 filesystem. Its what the nexus S uses. I'd recommend it. In no doubt am I trying to dis this oc kernel however the notice of speed with io of ext4 trumps the oc. My 0.02
[Galaxy Tab  Android Development] richardtrip:
I was only explaining why your quadrant score is so much higher (and i know ext4 is much faster). Most people are still flashing rfs roms so i wouldn't start by making it ext4 only because you can't return in an easy way. Maybe you can try my next version (which should run on ext4 roms also although i didn't test it atm).

I did not think you dissed this kernel (because i would have just ignored it ;).
[Galaxy Tab  Android Development] richardtrip:
Update:

Version 3:

removed bootlogo

Changed initramfs for ext4 system and data support

Add BFQ disk scheduler (default)

lowmemorykiller: don't unregister notifier from atomic context

rcu: "Tiny RCU", The Bloatwatch Edition
[Galaxy Tab  Android Development] crisvillani:
So can i flash this over modaco's EXT4 kernel or do i have to go back to RFS?
[Galaxy Tab  Android Development] jamiemac1977:
says at the firstpost that it supports more filesystems (both it seems). :)

•Filesystem support - EXT2/EXT3/EXT4/RFS

Nice quick update there ... mhmm i wonder if there's a way to got to EXT4 withought needing a mem card (dont care about system wipe can titanium backup i guess).

How's this do in quadrant with the EXT4 and the clock then ? xD
[Galaxy Tab  Android Development] rmanaudio:
Ver. 3 does not convert anything to EXT4...it also does wipe all your internal SD.

I do not see any gains from Ver. 2 or Ver. 1.
[Galaxy Tab  Android Development] crisvillani:
Yes but if you convert it using Modaco's kernel , then you will have converted EXT4 with OC :D
[Galaxy Tab  Android Development] rmanaudio:
Makes no sense....if you load Modaco's kernal, then this OC kernal gets wiped!

You cannot have 2 Kernals running!

My question is...does your new V3 kernal really do EXT4 after it wipes or are the filesystems still RFS?
[Galaxy Tab  Android Development] Landroid:
when u flash the modaco kernel it will convert the fs and then u flash back this OC kernel and u have OC and EXT4
[Galaxy Tab  Android Development] richardtrip:
If it is converted before you flash this kernel. But beware of the sdcard wipe. Backup your stuff before trying.
[Galaxy Tab  Android Development] rmanaudio:
Still makes no sense...as this Kernal will wipe your SD...so what is the point of converting when it will get wipped out!
[Galaxy Tab  Android Development] lhamptonjr:
Soooooo Confused!!!!

i have been looking through this thread and i need all the help i can get....

i just bought a usa tombile tab and i would love for it to run faster and make calls....what do i have to do...im such a NOOB i know...lol...Please Help, im afraid to lock it up...
[Galaxy Tab  Android Development] crisvillani:
Well this is wat im gonna do im gonna flash the modaco kernel convert to EXT4, then flash his Rom, then flash OC kernel...

Will see how it comes out ..
[Galaxy Tab  Android Development] lhamptonjr:
i need help big time
[Galaxy Tab  Android Development] antiochasylum:
Its really hard to brick the tab. Just read every post for problems and such. It's really not hard. I was the same when I came to android from iPhone. Gotta learn somehow!
[Galaxy Tab  Android Development] lhamptonjr:
so your tab is overclocked and makes calls?
[Galaxy Tab  Android Development] antiochasylum:
Mine makes phone calls. I had it overclocked however I went back to stock and converted it to ext4 and I'm running the modaco rom now. Ext4 has a performance gain over samsungs crappy rfs rile system.
[Galaxy Tab  Android Development] antiochasylum:
Outcome??

10chars
[Galaxy Tab  Android Development] crisvillani:
Still working on it :D
[Galaxy Tab  Android Development] lhamptonjr:
u mind pm me on how to do so? pleaseeeeee
[Galaxy Tab  Android Development] antiochasylum:
Lol I hear that. My first ext4 conversion failed so it took me about 2 hrs. Finally got it. I'm curious though. Even though I love modaco its still nice for an OC. Since mine had zero issues at 1.2 even my nexus was the rare ones that was stable at 1228mhz. Maybe I'm lucky.
[Galaxy Tab  Android Development] antiochasylum:
I would but I'm in class on my nexus right now. Go back to android developement and read! Its all there for you.
[Galaxy Tab  Android Development] crisvillani:
Success!

So i got EXT4 and OC working but quadrant scores arent as high as they should be i get around 1179, which is wierd because EXT4 should boost that number to at least 1700-1900 , so i typed mount into terminal to check if system, data, and cache were on EXT4, so system , cache, and dbdata were all on EXT4, but data seemed to be on RFS , idno if thats even possible becasue im new to this RFS stuff, but that could be y quadrant scores are low, so how i did this is i converted to EXT4 with modaco's kernel, then i wiped and flashed his rom, then i flashed this kernel :D Gonna continue to test!

EDIT: Oh also flashing the OC kernel over modaco's rom did not seem to wipe internal or external sd !

EDIT 2: Seems sensors are not working : (
[Galaxy Tab  Android Development] antiochasylum:
Strange.

Just typed mount into terminal myself, everything was ext4 except /dev/block/stl3 was RFS. so not sure exactly what that is. Maybe someone can chime in?

Edit: I'm going to test the kernel on my ext4 modaco rom right now. Will report back.

Edit2: Flashed and booted up. Wiped all my apps however. Going to run a quadrant and see what happens.

Edit3: Is reverts the /data back to RFS, 100% for sure.
[Galaxy Tab  Android Development] crisvillani:
Thats is strange wonder why it does that, are all sensors working for you?

Sent from Overclocked Galaxy Tab.
[Galaxy Tab  Android Development] antiochasylum:
Yup everything worked just fine. Flashed back to modaco kernel and booted right up.

Maybe richardtrip can chime in on this
[Galaxy Tab  Android Development] crisvillani:
Same back on modaco's kernel for now ..

Sent from Overclocked Galaxy Tab.
[Galaxy Tab  Android Development] antiochasylum:
+1

10chars
[Galaxy Tab  Android Development] caveman999:
I just finished flashing this kernel (V3) onto a roto JME V4 using heimdall and it wiped my internal sd card. No big problem though because I just loaded titanium backup onto my device and restored all my apps and settings. So far I have noticed that my tab is a lot snappier.
[Galaxy Tab  Android Development] doloop:
Risk of wiping should be written in big red font on the first post of this thread, until this bug is sorted out.
[Galaxy Tab  Android Development] natious:
Is it worth converting to ext4? Is it a noticeable different?
[Galaxy Tab  Android Development] triplex76:
Ok, so I flashed the OC kernel on a JK5 official firmware and everything went good, no apps lost , everything works just fine, the only thing i noticed it's that inside this kernel there is the led light protection feature, meaning that if you use some "torch" software the led is going to shut off after about 3 seconds .

with the original jk5 it stays always on. so it's not related to the latest pda the protection but it's inside the latest kernel .
[Galaxy Tab  Android Development] rmanaudio:
This kernal is very unstable...it reboots at certain times...like when you are adjusting white colour density! Or it freezes on charging when the unit is off. V1 did not have these issues.
[Galaxy Tab  Android Development] triplex76:
No issues at all on jk5 .only thing i noticed it is that 1.3volt for the cpu is too much and it reachs high temp going in protection mode stucking.it works without any issue with the stock voltage 1.275 .would be great if you mod a kernel with stock voltage.i found no issue even lowering until 1.2v ..but again 1.3v is too much for temp.kernel is stable no problem even setting display is fine.last thing is that xan app to fix voltage setting on boot does not work on galaxy tab.it restarts with stock kernel values so the fix to stock voltage would be double welcomed.
[Galaxy Tab  Android Development] richardtrip:
colour density fixed in next version.

New kernel is tested with ext4 (converted JME v4 with koush recovery) and working fine (quadrant 2000+)
[Galaxy Tab  Android Development] richardtrip:
The stock voltage for 1.2 Ghz in the original sources is 1.3v.
[Galaxy Tab  Android Development] richardtrip:
Update:

Version 4:

Fixed colour density

Tested with ext4 (Roto JME v4 converted with koush recovery, 2000+ quadrant)
[Galaxy Tab  Android Development] rmanaudio:
Could you also fix the issue where the TAB does not charge when it is OFF.
[Galaxy Tab  Android Development] triplex76:
if it could help no issue about density and charge even with the older v3 on jk5
[Galaxy Tab  Android Development] crisvillani:
EDIT: EXT4+OC = awseome : P

Running Modaco's Beta1 rom with this kernel get 2045 in quadrant , great work dude !!
[Galaxy Tab  Android Development] Armani G:
for some reason im stuck at the samsung logo...
[Optimus One, P500, V General] ahmadfarisfs:
As the title said, is it necessary to write the touch screen driver from scratch to eliminate the "touch screen bug" ?