Develop Bugs

phone stuck at ramdump mode

hi
the problem is that after a fail in flashing a stock rom
the phone is stuck
if i try to boot to recovery it shows samsung logo with ramdump arm9 mode on the corner
if itry to boot to download mode it show black screen
if i try to boot to os it stuck at samsung logo
also it shows some times dload emergency mode
i tried flashing throught odin but it just freezz at setup connection
please tell me what to do

Which key combination did u use for download mode??
I guess download mode is accessible when u press & hold Volume down & Home & Power keys together.:sly:

yes i know but after fail in odin download mode became just black screen

[Q] Stuck in download mode!!

So I have a rooted tab s 8.4 wifi and I am using skyhigh kernel. I tried to boot into recovery and it went straight to download mode without any prompt. I got it out and tried backing up my ROM using the TWRP Manager app. It then booted into download mode and wont come out. if I hold power+volume down it will reboot but just goes back into download mode. Any ideas??? I dont have access to a computer for a while either!

Hold power, vol down, and home for 30 seconds or more and it should reboot. Hope this helps!

DUHAsianSKILLZ said:
Hold power, vol down, and home for 30 seconds or more and it should reboot. Hope this helps!
Click to expand...
Click to collapse
It just restarts and goes to the download mode prompt where I can select cancel or continue. Both options lead me nowhere. It still boots into download mode everytime

Stupid1337deer said:
It just restarts and goes to the download mode prompt where I can select cancel or continue. Both options lead me nowhere. It still boots into download mode everytime
Click to expand...
Click to collapse
Wait until it don't have anymore battery?

Stupid1337deer said:
It just restarts and goes to the download mode prompt where I can select cancel or continue. Both options lead me nowhere. It still boots into download mode everytime
Click to expand...
Click to collapse
Then you have defective main partition and need to flash from download mode anyway.
Other option is to boot into recovery (hold power, volup, home).

In another thread someone told to hold Power + VOL up + VOL down. It worked for my tab.

Galaxy Tab S SM-800 stuck with flashing TWRP logo

I was provided this device to try and help resolve the issue. I am not sure how it got to this point. I believe that it was rooted with a custom ROM, then the individual tried to install a stock ROM (method unknown).
The current situation is:
Galaxy Tab S 10.5 SM-T800 stuck in a bootloop with the TWRP logo on the screen. I can not get the tablet to go into download mode. I have tried all of the different methods to enter download mode, i.e. Power & Vol - & Home, Drain the battery > Plug into PC while holding Vol - & Home, Power & Vol + & Vol -. None of these combinations do anything. The only thing I can do to get a response is to press Power & Vol +, which reboots the device right back into the TWRP loop after the Samsung Logo. Power button alone does nothing.
The device is seen by Windows with the Samsung Drivers but is not mounted to a drive letter, and I can not mount it.
ADB , fastboot and Odin do not see the device.
I would like to flash a new rom either custom or stock, but I need to be able to get the device into download mode so it can be seen by odin.
Any help would be great.
Mike

Probably just timing and pilot error this one. I've never known of any Samsung device boot but be incapable of booting to download mode as download mode is bootloader related.
No working bootloader means dead device.
No matter what state the device is in at the moment with the usb cable removed, hold POWER + VOL DOWN (not up) + HOME until the Samsung boot logo comes up, hold for another couple of seconds then release. Download mode should appear.

I know it should be easy....
I know it should work but it is not, I will make a vid of the process and post. I can not make heads or tails.
Mike
ashyx said:
Probably just timing and pilot error this one. I've never known of any Samsung device boot but be incapable of booting to download mode as download mode is bootloader related.
No working bootloader means dead device.
No matter what state the device is in at the moment with the usb cable removed, hold POWER + VOL DOWN (not up) + HOME until the Samsung boot logo comes up, hold for another couple of seconds then release. Download mode should appear.
Click to expand...
Click to collapse

Is the home button actually working, are you pressing it firm enough?
If the home button doesn't register then the tablet will simply reboot.
Its a bit odd why twrp doesn't fully boot though unless it's the wrong one.
Does it hang at the twrp logo or continually reboot?

Am I Bricked?

Hi Guys,
I'm on a budget so I picked up an android off Craigslist today. Here is my problem -
Samsung S3 Rooted
Phone was working fine until I went into TWRP and wiped everything I could, and formated the phone. Obviously, I don't know exactly what I did.
Immediate problem -
Phone is stuck on boot, and I can't get into Fastboot, or a safe mode.
When I reset the phone, (by holding Power), the phone vibrates, shows a battery cell, then gets stuck on the boot screen. I guess this guy was using KToonsez KT747 - Kernel Dominaton, because that's what it says when I boot up. Then it just gets stuck there.
If I reset the phone and hold VolUp/Home/Pwr, it just gets stuck in a loop where it just vibrates over and over.
If I reset the phone and hold VolDn/Home/Pwr, I get the following -
Warning
A custom OS can cause critical problems ... ...If you want to download a custom OS press the volume up key. Otherwise, press the volume down key to cancel. If I press the VolDn key, it reboots and get stuck at the boot screen where it shows KToonsez KT747 - Kernel Dominaton. If I press the VolUp key, it gets stuck at Downloading... Do not turn off target !!
In the top left it shows the following...
Product name: SGH-T999N
Custom Binary Download: Yes (4 counts)
Current Binary: Custom
System Status: None
Qualcom Secureboot: Enable
Warranty Bit: 1
Bootloader AP SWREV:1
WHAT. DO.
Suggestions anyone?
Thank you,
Nate

If you have a PC you could go back to download mode and restore the stock software and see if that fixes the issue. If it does you could use download mode and Odin to reinstall Twrp and start flashing roms.

Download the latest ROM for the phone from here (it's slow so be patient): http://www.sammobile.com/firmwares/database/SGH-T999N/ . Unzip the file once to get a tar.md5 file.
Download Odin 3.07 from here: https://www.google.ca/url?sa=t&rct=...5QWImOPDJboTA_V3D5S9eA&bvm=bv.131783435,d.amc
Samsung USB drivers: http://www.samsung.com/us/support/owners/product/SGH-T999NBATMB
Install the Samsung drivers.
Open Odin, uncheck everythign except f reset time.
Click on PDA and select the tar.md5 file you unzipped.
Boot phone into download mode by pressing home, volume down, and power, then volume up.
Connect the phone to the computer using the original Samsung USB cable and the phone should show up as a COM port.
Flash the phone by clicking on start.
When you see the word "reset" in the status window, remove the USB cable from the phone, remove the battery, replace the battery, boot into recovery by holding down the home, volume up, and power button.
Perform a factory reset/wipe and reboot.

Using Download Mode Without Display

I've got a Samsung Galaxy Tab S 8.4" which no longer has a working display. I want to back up as much of it as I can, so I've set to work on installing TWRP. I already installed and used it successfully on an identical device (but with the screen working!), but this time round, it just doesn't work.
TL;DR: My questions: Is there any way to add TWRP to my device without using Download Mode? Is there any way to check if TWRP is installed? And is there any way to, once I'm in Download Mode, determine that without exiting and without a display?
My process: I've tried getting into Download Mode both by shutting down, then holding the power, volume down, and home buttons for ten or so seconds, then following up with a volume up press to confirm that I want to use download mode; and by just typing reboot download in adb. I've then used Odin to flash it with TWRP. Odin shows a PASS, so I wait for the tablet to reboot into the normal mode.
Once there, I've tried to get into TWRP by both shutting down, then holding the power, volume up, and home buttons for ten or so seconds; and by just typing reboot recovery in adb. But, no matter how long I wait, my device never reconnects to my computer, and adb shell can't connect to it.
When I've rebooted into recovery, I seem to be able to press the power button once, and it reboots into the normal boot mode; this indicates to me that it's in the normal Recovery Mode, since this isn't default TWRP behaviour. That would mean that TWRP hasn't been successfully installed.
I came across this thread, which suggested that using Odin to flash a device while it's not in Download Mode would likely have no effect. My figuring, then, is that I haven't successfully booted into Download Mode ever.
Interestingly, when I ran Odin during what I thought was Download Mode, it did seem to restart the device when it was done (at least, after a bit I could connect to it normally with adb).
My question, then: Is there any way to add TWRP to my device without using Download Mode? Is there any way to check if TWRP is installed? And is there any way to, once I'm in Download Mode, determine that without exiting and without a display?
I know it's a bit of a tricky one, so :good: if you can think of an answer to any of those.

I wonder if the hdmi adaptors would work in recover, they are quite cheap to buy.

Your issue is likely that you're not manually booting to recovery IMMEDIATELY after flashing with Odin. TWRP is obviously successfully flashing.
You need to disable auto-reboot then when odin states PASS, force manual reboot by holding POWER + HOME + VOL DOWN for a few seconds then change to VOL UP whilst still holding the other buttons.
This is all gonna come down to timing, so you may have to do it several times until you get it.
In any case if all you need to back up is your stuff stored on internal storage, you don't need twrp for that. Just connect the tablet to the PC and use MTP to backup what you need.