[Galaxy Tab 3 10.1 Android Development] r2d23cpo:
[MENTION=5707708]Jacker31[/MENTION]

Listen, I confuse I guess both of you where stock, but now only Jacker31

Listen carefully, I know the cure to many devices like Palm was to let the device drain, then see how it reboot into factory. No TAB 3 boot.img programing will not work like that. There is no factory.img waiting to resurect your device. That boot.img is what you have.

I already said that. Do not let it drain unless you want to open your tab and charge the battery separately! At least that have been the comments. I personally think that the device could boot while hook to the PC in an attempt to program. I know that I said that but THAT in fact is dangerous for 2 reasons. One I f you see the device power adapter is 2 Amps. So we can assume that a discharge TAb can load at least 1.5 amp when discharge. A PC USB only supply .5 Amp!! And a general rule for any device is that you never program a device with minimum power due to possible firmware corruption

So here is my tip.

When the device failed boot.img and goes into black screen it can make you think it is broken. But In fact it is in boot "Limbo". So because there is no feedback on the screen (image) You never know where the TAB 3 is with reference of Power OFF, Charging, Download mode Boot mode or Recovery mode.

You will be save if you can get away of the corrupt boot. Then get into download mode and use Odin or get into recovery and use a good update.zip or backup.

So our BEST tool is the Three button Start Sequence to get away from the Boot bad image. The truth is that our TAB does not requires the Home Button to be Press. SO we only use Power.,Vol- and/or Vol+.

Here is the Basic.

Get a Clock that shows seconds.

Disconnect USB Cable from TAB. Tab should have at least little battery power. Why, to ensure you get in Power Off Mode and not unknown charging mode.

* Pressing Power Button for 6 consecutive seconds should reset and bring TAB 3 to Power Off Mode. Pressing Longer can actually confuse the device, because it may go in to Boot again or just Get another reset and loop back. So the secret is to Hold Comfortable & Firm you Tab in you hand to ensure you PRESS continuously but only the required time.. Then Press Firm ONLY the Power Button lets say 7 Seconds NOT MORE then release. You do not Know but know you should be in POWER OFF.

* Now Lets go to Download Mode. For That we need only POWER + Vol- ( Vol- is the Closest to Power). Remember to Hold firm your TAB and buttons. A bad contact will interrupt the process. DO not Press TO HARD, you could damage your buttons. But Here is a tip. You want to ensure that your TAB know you Press the Vol-. For this reason you are going to press Firm FIRST the [Vol-]. Now Keep pressing [Vol-] and press [POWER]. In 3 seconds you should see The Warning and the Triangle of Download Mode. if you get there the use Odin to revive your TAB. I am Attaching an Odin Boot file.

If it fails try again. Press [Power] for 7 seconds. Release. Wait 3 seconds. Press [Vol-] then [Power] for 2 seconds. Then while keeping [Vol-] down release [Power], no more than 3 seconds later ===> Download Mode. Now use Odin file

The same goes for Recovery. But in recovery is [Vol+]

Press [Power] for 7 second. Release. Wait 3 seconds. Press [Vol+]then [Power] for 2 seconds. Then while keeping [Vol+] down release [Power], no more than 3 seconds later ===> Recovery Mode., now use your backup or the update.zip I gave you.

Now let me explain.

* Press [Power] for 7 second. ==> This in fact after 6 seconds trigger Power Off Mode.

* Release. Wait 3 seconds. ==> This ensure that you guys do not trigger Power On or even a second time Power Off.

* Press [Vol+]then [Power] for 2 seconds. ==> Please note that we first press [Vol] so that there is no doubt that you want to Power on in a special mode. You press [Power] for 2 seconds only so that it Power On and in fact do not reach the 6 second for another power off!

* Then while keeping [Vol+] down release [Power] ==> You need to release [Power] so that you do not trigger another Power Off. But need to HOLD [Vol] for about 3 seconds so that it boots in Download or recovery Mode.

Please Note the dilemma. Keeping [Power] press more than necessary will result in a unknown state, depending only in how many the devices in fact triggered Power off and or power On!! That is why you need to observe the timing.

NOTE:

If you get stock in Download mode just press Power for 7 seconds and release.

Some people say that a magic rest is when you press [POWER]+[Vol-]+[Vol+], all 3 at the same time. Just try it may work for you.

I will post files soon.

---------- Post added at 04:47 PM ---------- Previous post was at 04:36 PM ----------

@Max4000 [MENTION=5707708]Jacker31[/MENTION]

OHHHH BOYY I think I know what you guys are doing wrong.

I believe you guys decided to upgrade to th infamous KK 4.4.2. And know you guys are experimenting with the JB 4.2.2 Kernel. Bad bad boys, a 4.2.2 boot image will not be accepted by KK4.4.2 security!!!!

Any way I suggest if you are to keep experimenting is better to stick to more friendly 4.2.2 or at least compile 4.4.2 kernel Instead.

---------- Post added at 05:30 PM ---------- Previous post was at 04:47 PM ----------

Listen guys my Internet it bad. At the moment I can not upload. So I am going to give you instructions for the files.

I am amusing you guys are in 4.4.2 KK.

I guess you should have a backup copy. Well I do not use 4.4.2 so best i can do is suggest you use the following file gave to me by moonbutt74 but I have not test it. I only have a GT-P5210, if you have different you need to search for it.

gt-p5210-stock-KK-boot.img==> h__ps://www.androidfilehost.com/?fid=95897840722647395

To make a kk4.4.2 Update.zip, use these file and create the update.zip as explained previously. Cleraly you are going to use the update.zip if you get in to recovery mode.

But If you get in Download mode instead you need a tar.md5 file. For this download the previous file and in Linux type:

cp gt-p5210-stock-KK-boot.img boot.img
tar -H ustar -c boot.img > odin_package_boot.img.tar
md5sum -t odin_package_boot.img.tar >> odin_package_boot.img.tar
mv odin_package_boot.img.tar odin_package_boot.img.tar.md5

As you see you will end up with an Odin package called odin_package_boot.img.tar.md5

---------- Post added at 05:50 PM ---------- Previous post was at 05:30 PM ----------

OHH BOYYYYY! Third strike

[MENTION=5707708]Jacker31[/MENTION] I am looking now at your "ninjakernel.zip" . And I am now more confuse. I thought You said you have a GT-P5210 WIFI. P5210 name is santos10wifi. But when I look at your ramdisk it shows "santos10lte" witch is the code name for GT-P5200.

SO If you have a GT-P5200 the file I post do not work for you. The instructions to build update.zip or tar.md5 are ok, work for all.