yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 2 General] keymaster911:
i have root.. but i am still working on to get recovery working on here for this device. superuser is working.

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
That's what this whole tread is about.. since you've already bricked your first tab i'd suggest being very careful with that.

Sent from my SCH-I535
[Galaxy Tab 2 General] 2009joseph:
htc desire s rooted s-on

hello xda friends maybe you can help me

well i have a htc desire s with s-0n rooted with HTCDev.com.

well i have got cwm and backed up my rom.and flashed others no problem but with loading a rom i had to go into command promps and flash a boot.img. well no problem there as i downloaded roms with a boot.img with them.now i want to go back to my original stock rom and load it it loads ok but when i load the boot.img it dose not work.i got the boot img from the back up that i made of my stock original rom.

please help as i would loke to know whar i am doing wrong cheers
[Galaxy Tab 2 General] keymaster911:
I bricked my first one.. Due to trying to flash ez-unlock from the market.. I learned my lession from that.. I figure it wouldn't hurt to try..
[Galaxy Tab 2 General] BigBot96:
that's fine, just want you to be careful lol.

Well my board name is correct, according to this app. Android sys info. When flashing using dd, do I need to add a bs=#### argument? If so what value should I put there?
[Galaxy Tab 2 General] keymaster911:
This does have boot loader. Till we have that unlocked. This is where we will sit.

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[Galaxy Tab 2 General] BigBot96:
I know the bootloader is locked. But the bootloader doesn't need to be unlocked to have a custom recovery. The locked bootloader does, however, prevent flashing a custom (non-signed) recovery image and boot image (kernel) via ODIN. Though, because the bootloader only checks the kernel and boot image during boot, we should be able to flash a custom recovery using ADB or Terminal using

# dd if=/sdcard/recovery.img of=/dev/block/mmcblk0p18

This is flashing just fine... but there's something wrong with the images I'm packing. Even if I unpack, and repack the stock recovery, it won't boot. It'll boot, then before the recovery fully loads, the device will reboot normally.

Because the bootloader is locked (and will probably remain locked for all eternity due to the little to no dev with this device), we will never be able to use ODIN to flash custom kernels/recoveries. We will also never be able to flash custom kernels with CWM once we get that working because the bootloader (aboot) checks everything down to the kernel. The GS3 was finally unlocked because somebody leaked an unlocked bootloader that worked with the phone. I doubt we'd have that luxury with this tablet. I personally don't mind not being able to flash a custom kernel.. I just want to be able to make a backup so I can start tweaking and get my feet wet with ROM dev.

I haven't had a chance to get in contact with koush yet.
[Galaxy Tab 2 General] keymaster911:
well i am done trying to do anything with this thing. just going to wait and see what happens to what ur trying to do.. I sent bunch of emails this morning. to a crap load of dev crying for help with recovery. now its just a waiting game.

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
Trust me, I'm doing all I can.. I just don't understand why when I unpack and repack the stock image it breaks it. I know the board name (found in build.prop also), pagesize and base are correct.. I'm at a loss
[Galaxy Tab 2 General] ketut.kumajaya:
mkbootimg have --cmdline option.
[Galaxy Tab 2 General] keymaster911:
where can i get my hands on cwm recovery at.

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[Galaxy Tab 2 General] BigBot96:
Yeah.. I've been thinking about that. After some research, I've modified it to this:

./mkbootimg --kernel recovery.img-kernel --ramdisk ramdisk-new.gz --cmdline 'no_console_suspend=1 console=null' --board MSM8960 --pagesize 2048 --base 0x80200000 -o recovery-new.img

The CWM I compiled already had those options.. so.. idk.. What other options can I pass to this? Google didn't return much to me..

Still doesn't boot repacked stock recovery. AGH!! I'm so confused..
[Galaxy Tab 2 General] fzhh:
I am thinking to flash the leaked S3 unsecure aboot.img to my VZW i705 using dd. Just curious what you meant by "hard brick". Do you mean you could not boot it into Odin mode?
[Galaxy Tab 2 General] BigBot96:
DO NOT! DO NOT DO THAT!

A hard brick means your device is DEAD. On these devices, ODIN IS THE BOOTLOADER. If you frak that up, you frak up your tab!

YOU HAVE BEEN WARNED!!
[Galaxy Tab 2 General] fzhh:
I see. Thanks.
[Galaxy Tab 2 General] keymaster911:
Listen to him.. Trust me. I learned from my mistake. But Verizon sent me a new one

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[Galaxy Tab 2 General] keymaster911:
This is bull crap. Number 2 tablet is hard brick.. I am done.

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[Galaxy Tab 2 General] BigBot96:
What'd you do?
[Galaxy Tab 2 General] keymaster911:
Lol.. Started forcing the programs out of it. Using Linux. She flick you. Your not getting nothing from me. Shut down and won't do ****.. They have this so tight and locked. It's way out of my league. It's Adam ball park or a top dev person.

Sent from my SCH-I535 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
Yeah.. It's almost a clone of the VZW gs3, minus the phone radio. I wouldn't change much to your device until we get cwm working that way you can backup/restore when you want/need. I'm getting frustrated
[Galaxy Tab 2 General] BigBot96:
I've taken the TWRP Recovery for the GS3 and injected my zImage with the same result..

My mkbootimg command is modified a bit..

I'm not getting any responses from anybody I've messaged or emailed...
[Galaxy Tab 2 General] keymaster911:
Bro.. This tablet will stay plain Jane. Till that bootloader is unlocked.. And sounds of thing. No dev person is going to waste there time on this.

Sent from my SCH-I535 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
There's a few more things I'm going to try this weekend. I haven't had any time these last few days. However, if I get too frustrated.. I may just start tweaking my tab, dumping the system image every now and then. Basically rom dev with ODIN instead of CWM.... not ideal but we could still get something out of it. Besides if it gets screwed up we should still be able to load up ODIN and flash the system image (since it's not signed).
[Galaxy Tab 2 General] ruben00:
What does the /cache/recovery/install and /cache/recovery/last_log say

After you flash cwm and reboot?

Can you attach them here so i can compare them to my own

Thanks
[Galaxy Tab 2 General] BigBot96:
Install is empty.

Last_log:
[Galaxy Tab 2 General] BigBot96:
By the looks of it my recovery isn't even launching before it reboots. Or I crashes before its got a chance to write to the log.
[Galaxy Tab 2 General] keymaster911:
you guys. WE need the bootloader unlocked.. Your not going to be able to do anything.. Your wasting you time.

Till someone like adam did with the s3.. This tablet is shot..

---------- Post added at 01:50 AM ---------- Previous post was at 01:13 AM ----------

Little bored. So I got searching around. The sound of things this should work.. And you wont lose rom.. Bescause all your doing is flashing recovery and super user..

http://theunlockr.com/2012/05/01/how-to-root-galaxy-tab-2-7-0/
[Galaxy Tab 2 General] BigBot96:
We have root and superuser. We cannot use Odin because the recovery partition is signed. That's why we need to use dd but the recoveries I've made keep failing. Boot loader locked just means we can never flash recovery via Odin, boot image at all (custom kernels).

The in-laws are in town so I don't have a lot of time. Hopefully will have more time by Wednesday.
[Galaxy Tab 2 General] keymaster911:
http://xdaforums.com/showthread.php?p=10624454#post10624454 this might help with some clues

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[Galaxy Tab 2 General] ruben00:
That alternate recovery trick looks very promising
[Galaxy Tab 2 General] keymaster911:
I have source code. Time to rip it apart.

You can find the opensource code here..

http://opensource.samsung.com/reception/receptionSub.do?method=about

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] keymaster911:
Thinking about it. who needs recovery. I just customized my calendar. I did it with out flashing anything.

I even changed the little guys blue.. Once this comes around. This is going to fully customized with real icons. Even changedbthe toggle on/off buttons

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
That's what I was thinking a few posts back. I'm annoyed with this recovery and annoyed with how difficult it is to contact the cwm dev team. This week I'm going to dump my system part as a backup and start tweaking the system. If I screw something up I should be able to load it back up with ODIN since it's not signed.. I don't think. hah. I'll try re-flashing a stock system image. Really all I want to do is some speed tweeks, and maybe re-skin the UI to look more AOSP ish.

I'm still gonna poke at the recovery here and there but it's not super important to me anymore.
[Galaxy Tab 2 General] keymaster911:
Well for speed . You need the kernel to flash.

For custom work. I used root explore. Copy the apk to the ext SD card . Then to computer. Did the custom work, place it back card. Copy place it back in the system/app draw. Didn't delete the old one. Just over ride it. Tablet freezes when I do it. But I reset anyways. Power down holding power button for 10 sec . Power back. See the custom work you did... lol

Sent from my SCH-I535 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
Well when I say speed I'm mainly talking about the build.prop and init.rc. I'm not gonna swap the kernel that'd sound the VZW alarm lol. Besides I don't know the first thing about customizing kernels. I was going to do the same method you used to customize everything, but backing up system is important in the event that it won't boot. I'll just reflash the system.

On a side note... I packaged my system into a .tar.md5, tried flahsing via ODIN and it said:

UNSUPPORT dev_type

Now this is not a signing issue. The system part is a ext4 partition.. which may be where I'm going wrong. Anybody have some advice to repackage a system.img? I can't modify anything yet because I don't want to be stuck without a working system.img.
[Galaxy Tab 2 General] keymaster911:
I brinked 2 tablets already. They sent 2 brand new ones. So Verizon I wouldn't worry about calling them about a brick tablet. They will just send you a replacement. :D

Just say you where surfing porn sites in hd . And the screen blacked out. Now they won't say anything. That's what I told them. :D

Sent from my SCH-I535 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
Ok, I had to dump my system image with a .ext4 extension instead of .img, packaged it into a .tar.md5 and was able to flash with ODIN. So..

$ su
# dd if=/dev/block/mmcblk0p14 of=/mnt/extSdCard/backup/system.img.ext4 bs=4096

[I][B]**then copy it to your computer, IE: c:\android_backup\**[/B][/I]
[I][B]**using cygwin/linux, Tarball it..**[/B][/I]
tar -c system.img.ext4 >> system.img.ext4.tar

[I][B]**Assign it an md5sum**[/B][/I]
md5sum -t system.img.ext4.tar >> system.img.ext4.tar

[I][B]**Then package it as an MD5**[/B][/I]
mv system.img.ext4.tar system.ext4.tar.md5

source

Now, if you or any of us screw up the system, we can recovery with ODIN. Just make sure to make backups of your system using the above method each time you finish tweaking something and before tweaking something else. These are your nandroid, sort of.. same idea I suppose.

Let the tweaking begin :) I'm gonna see about deodexing the system and debloating it, maybe even zip-align (if it doesn't require any custom kernels..). Squeeze as much out of this as we can. In the mean time, I'm going to continue tinkering with CWM and hopefully get it working one of these days!
[Galaxy Tab 2 General] keymaster911:
Great work. Thanks a million

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[Galaxy Tab 2 General] BigBot96:
No problem. I'm working on a 'ROM' right now. Debloating it and modifying build.prop. My touchscreen is a bit more responsive :) When I think I have something worth posting as a ROM I'll start a new thread.
[Galaxy Tab 2 General] keymaster911:
Touchable cwm. http://www.mediafire.com/?4b0ycai2523nk2c

This is for dev people helping out.

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
Does it work??? If so what'd you do different? If it works I'm gonna scratch my head till it bleeds.. then I'll need the run down.. lol
[Galaxy Tab 2 General] keymaster911:
Dont know yet. Waiting for the wife to go to bed. Then i can think. Have to turn this into md5 first

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
I don't think you'll be able to flash it with ODIN, if that's what you're planning to do. It has to be signed by Verizon.
[Galaxy Tab 2 General] keymaster911:
Thats what i M scared about doing. I brick another tablet. There going to make me pay for my 3 rd one. I figure you might be bale to do something with it. Or somw one can help us

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
It won't brick, it just won't flash. It'll fail. I've tried one through ODIN before and it just failed. I also used the cwm online builder if that's what you used. :)
[Galaxy Tab 2 General] keymaster911:
I cant get odin3 except the file.

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[Galaxy Tab 2 General] BigBot96:
^ bootloader.

I'm currently zipaligning my /system/app/ directory. Then I'm gonna deodex so I can theme a bit.
[Galaxy Tab 2 General] keymaster911:
I replaced the recovery. Img i made. All i got was a black screen then a reboot.. No luck on this. I give up

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[Galaxy Tab 2 General] ruben00:
Can you guys put up a copy of the system and boot image

I want to poke around the OS myself
[Galaxy Tab 2 General] keymaster911:
Mr. Can you do that please.

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[Galaxy Tab 2 General] BigBot96:
Ill try to find a place to upload it. System is 1.5gb. I'm assuming you want the boot image (ZImage/kernel) right? The bootloader would be the aboot.
[Galaxy Tab 2 General] ruben00:
Ok cool

well, whatever you can get is fine. If you have a DD of your boot partition, that would be what im after :)
[Galaxy Tab 2 General] keymaster911:
Just got email. We won't be able to do anything. Till that bootloader is unlocked. And came from top inside dev source. Dam. This sucks

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[Galaxy Tab 2 General] BigBot96:
That's why I'm focusing on modifying just the system now and using ODIN and DD to make backups and flash. Not ideal, but it gets the job done. Who told you we 'won't be able to do anything'? Because I'm still convinced we should be able to flash cwm using DD. If the bootloader was really blocking it, we would see something like this:

http://i.imgur.com/Ci0gY.png

Which we're not. This is why I believe CWM just doesn't support our hardware yet.. and probably never will..

I'll be uploading my system and boot images tonight. A gentlemen going by the name of joYstick615 has graciously opened up some space on his FTP server for us to use. I'll put more info later :)
[Galaxy Tab 2 General] keymaster911:
This tablet is locked up like the s3 was. Till someone break it apart. And do what Adam did with the s3. This. Is where we sit.

Sent from my SCH-I535 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
The S3 had recovery before the bootloader was unlocked though. I was talking to inbisiblek, who helped get CWM running on the S3, and they were able to get a custom recovery running on the S3 before the bootloader was unlocked. They just had to flash it using DD if=/ of=/. The bootloader needed to be unlocked for any custom kernels to be flashed unless they were using a k-exec recovery, which was a recovery that actually loaded a custom kernel, bypassing the bootloader.
[Galaxy Tab 2 General] nexttonomy:
I appreciate all the work and time you guys are putting into this device... I know we haven't gotten to far yet.. but its great to see you guys still determined to make this tab the best it can be..

Just wanted to let you know that I'm still following the thread and appreciate the effort...

Thanks, Nexttonomy
[Galaxy Tab 2 General] keymaster911:
Nice.. I never messed around recovery before till last night. But i am working on other things for it now.

What do you think..

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] id_ram:
Hey guys,

I dont mean to derail the thread, but a couple months ago I got a "prototype" Galaxy Tab 2 7.0 VZW SCH-i705 because a family member of mine who works for Samsung was given to test it but she never returned it and it was given to me because she had the 10 inch tablet.

I opened it up today and decided to try putting CWM on it but I didnt realize I was following the tutorial for the Galaxy Tab 2 7.0 WIFI.

Now what happens is every time I power on the Samsung splash screen flashes for a brief second and then the device shuts off.

I can still manage to get into ODIN, but I'm not exactly sure what to do from there on to get it back to normal.

Attached is a screenshot of my tablet in ODIN.
[Galaxy Tab 2 General] ruben00:
You got PM

This is what everyone has been waiting for !!!
[Galaxy Tab 2 General] id_ram:
Responded to PM

I look forward to helping you guys out and getting my tablet back running :)
[Galaxy Tab 2 General] BigBot96:
Awesome! That may be our answer to an locked bootloader! What method did you use to flash cwm? We NEED that aboot and boot dump!

Post everything you did here and we'll help you revive it!
[Galaxy Tab 2 General] keymaster911:
+1

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2

---------- Post added at 02:17 PM ---------- Previous post was at 02:17 PM ----------

Ruben you been a big help. Thanks man..

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] id_ram:
I turned on developer mode on the tablet while it was booted, used ADB to reboot into the bootloader, and then used odin to flash CWM 4.0.3 as per the guide linked below.

http://xdaforums.com/showthread.php?t=1722304

Restarted the tablet and got the brief splash screen and then nothing happened.

I repeated the above process with CWM 4.0.4, and TWRP to no avail. All I get into is odin.
[Galaxy Tab 2 General] BigBot96:
That boot/reboot you have is the same problem we have with all recoveries we've tried. Easy to fix :) You have a PM with a stock recovery.tar.md5. If that method doesn't work, I have another method that may. Let us know.
[Galaxy Tab 2 General] BigBot96:
Go here and you'll find boot.img and system.img.ext4. Have fun!

http://i705.youaremobile.com/stock_images/
[Galaxy Tab 2 General] ruben00:
I think id_ram just needs to flash the system zip first

To see if the tablet will boot back to the OS

I wouldnt flash the boot partition "just in case"

---------- Post added at 04:26 PM ---------- Previous post was at 04:24 PM ----------

NP

Im just happy to break verizons hold on the devices "WE" pay for :)
[Galaxy Tab 2 General] BigBot96:
The boot and system images were for you :)

I've sent him my stock recovery packaged for ODIN. Once he's able to boot his device again I'll show him how to dump his system/boot/aboot. After he has a backup of HIS stock system, I'll have him dump his insecure aboot to see if it'll work on our devices. Exciting times!
[Galaxy Tab 2 General] ruben00:
Oh ok cool

I thought you were askimg him to flash it

My bad :)
[Galaxy Tab 2 General] keymaster911:
I can't wait for you guys figure this out. I need a recovery. My recovery won't boot up.

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
Ill post my stock recovery later that you can flash with dd.

Also, i have a sort of ROM i may post soon. Been tweaking my system. Debloated, zipaligned, build.prop tweaks. Performs much smoother. Still waiting for the other guy to report back with results of my stock recovery.
[Galaxy Tab 2 General] keymaster911:
Some more work thats been down..

Sent from my SCH-i705 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] id_ram:
Hey guys,

Thank you so much for your help, but I haven't gotten around to flashing the stock files yet due to work.

I'll get around to it today and when I fix it I'll upload whatever you guys need.
[Galaxy Tab 2 General] id_ram:
Hey again,

Flashed the stock recovery as per MrHyde's instructions.

After the auto reboot, the samsung splash logo briefly came on the screen before the whole thing shut off again and it refuses to start up into anything but Odin.

What do you guys advise?
[Galaxy Tab 2 General] ruben00:
did you try flashing the system image via Odin/donwload mode?

by the way....when you reboot and it keeps going into download mode, are you holding the volume up key or volume down?

If you are holding volume up, can you try volume down to see if that gets you into recovery mode
[Galaxy Tab 2 General] BigBot96:
Do not flash the system image for our tabs. If our recovery isn't compatible then our system won't be either and he'll brick it further.

I PMd you more instructions :)
[Galaxy Tab 2 General] keymaster911:
MrHyde03.. I did everything I could to save this thing. But I have no luck. I hope Verizon will except this. Now it won't go past samsung galaxy tab 2 7.0 screen.

Sent from my SCH-I535 using Xparent SkyBlue Tapatalk 2
[Galaxy Tab 2 General] BigBot96:
PMd
[Galaxy Tab 2 General] BigBot96:
UPDATE:

We're making progress on id_ram's prototype tab. All partitions are the same and as far as I can tell so is the hardware. We got his recovery working again and now we're going to try getting his system to boot. If it does, we'll most likely (NO PROMISES!) have an unlocked bootloader by the weekend :)
[Galaxy Tab 2 General] ruben00:
Nice

I have been poking around the system and recovery images to see if i could come up with a plan B but no luck
[Galaxy Tab 2 General] id_ram:
Thank you guys again for your help again and I hope I can contribute!
[Galaxy Tab 2 General] BigBot96:
No problem. I hope we can figure this out for you!

So, my CUSTOM Samsung boot screen finally started displaying. After all the modifications I made to the system. Almost two weeks later it finally realized haha
[Galaxy Tab 2 General] ruben00:
Why would it start just now? did you flash it again, or it actually took two weeks to take effect?

Here are some I made...

http://xdaforums.com/showpost.php?p=31979549&postcount=11
[Galaxy Tab 2 General] BigBot96:
I've no idea. It took this long for it to realize it wasn't official I guess lol.

An update on id_ram's tab:

He successfully flashed my system image but he had the same problem as before. The Samsung logo flashes for a moment then the tab displays a black screen. He can still get to recovery and ODIN. My thoughts are his boot image is incorrect also.

Luckily our boot image (kernel/zImage) is not our bootloader (aboot).

I've sent him instructions on how to backup his boot.img and aboot.img from recovery mode using adb. After he dumps those images he's going to send me a link to download them so we can get a hold of his aboot (bootloader). I've also sent him my boot.img to flash over top his from recovery using adb. Hopefully we can get his tab to live again and also have a working insecure bootloader :)
[Galaxy Tab 2 General] keymaster911:
Can't wait

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