Develop Bugs

[Q] Won't start after rooting with odin

I try to root my S3 with odin now the only thing i got when i turn it on it's a few second of Samsung image and after that it's vibrating and nothing more.
I try to reboot it with the volume button down or up and nothing too
PLz help it'a a S3 from Rogers(canada) SGH-I747M

To reboot in download mode you need to press all together : Volume down, home button and power. In clockwork mode you nee to press : Volume UP, Home button and power and them let go all when you see Samsung galaxy S3 logo with litte blue writing on left top corner.

lutinx said:
I try to root my S3 with odin now the only thing i got when i turn it on it's a few second of Samsung image and after that it's vibrating and nothing more.
I try to reboot it with the volume button down or up and nothing too
PLz help it'a a S3 from Rogers(canada) SGH-I747M
Click to expand...
Click to collapse
Are you booting into recovery mode correctly ? Hold home and volume up and then hold power until it flashes...then let go

hednik said:
Are you booting into recovery mode correctly ? Hold home and volume up and then hold power until it flashes...then let go
Click to expand...
Click to collapse
Yes the only thing happen i saw tje samsung logo for 2 secondes and the phone vibrate and the screen turn black

Since I'll assuming you flashed rooted firmware, you need to access recovery to wipe data/factory reset and wipe cache in order to proceed. Which root method did you use?
Recovery mode: Vol up + home + power. When your device vibrates, release only the power button

lutinx said:
Yes the only thing happen i saw tje samsung logo for 2 secondes and the phone vibrate and the screen turn black
Click to expand...
Click to collapse
And if it doesn't work you can force it into downoad mode by holding down the power. volume down and power key without the battery and then putting in a micro usb cord plugged into the computer. Then put in the battery. Thats the hard way haha
Or get into recovery and clear all cache and factory reset.

hednik said:
And if it doesn't work you can force it into downoad mode by holding down the power. volume down and power key without the battery and then putting in a micro usb cord plugged into the computer. Then put in the battery. Thats the hard way haha
Or get into recovery and clear all cache and factory reset.
Click to expand...
Click to collapse
I try to rott it with the lastest odin. It's a S3 from Rogers canada
I try all the thing u told me and still have a black screen the phone vibrate or i see the logo od samsung for 2 secondes or the battery logo and then nothing

lutinx said:
I try to rott it with the lastest odin. It's a S3 from Rogers canada
I try all the thing u told me and still have a black screen the phone vibrate or i see the logo od samsung for 2 secondes or the battery logo and then nothing
Click to expand...
Click to collapse
Which Odin did you use?
I've been using the one from this thread: http://forum.xda-developers.com/showthread.php?t=1822308 and never had issues.
Gotta make sure you download the one for Rogers.

So you successfully got it into download mode and flashed the stock rooted rom with no issues?
If so then you need to wipe data from and cache in order to eliminate the bootloop.
Again, recovery is: Vol up + home + power. When your device vibrates, release only the power button

Stuck at SAMSUNG LOGO

if you are stuck at samsung logo after flashing with odin
here's what you have to do:
1. While on Samsung logo. press power key + volume up and down + home button (all together)
2. When the screen is off. Press Power key + Volume Up + home button to enter recovery mode.
3. Wipe Data
4. Wipe Cache
5. Reboot to system
you should be fine right now ^^
cheers!

lexjay said:
if you are stuck at samsung logo after flashing with odin
here's what you have to do:
1. While on Samsung logo. press power key + volume up and down + home button (all together)
2. When the screen is off. Press Power key + Volume Up + home button to enter recovery mode.
3. Wipe Data
4. Wipe Cache
5. Reboot to system
you should be fine right now ^^
cheers!
Click to expand...
Click to collapse
I'm having that problem now. I followed your instructions and got to the recovery mode or "Odin Mode" and it's been saying it's downloading for about 10 min or so. Any idea on how long it should take ?

casual167 said:
I'm having that problem now. I followed your instructions and got to the recovery mode or "Odin Mode" and it's been saying it's downloading for about 10 min or so. Any idea on how long it should take ?
Click to expand...
Click to collapse
Actually I believe it's the download mode that I'm in. It doesn't seem to get to the recovery mode when I press the Volume up key and power button for some reason.. Am I doing something wrong

casual167 said:
Actually I believe it's the download mode that I'm in. It doesn't seem to get to the recovery mode when I press the Volume up key and power button for some reason.. Am I doing something wrong
Click to expand...
Click to collapse
Follow these instructions implicitly.
Hold POWER + VOL DOWN + HOME.
As soon as it restarts change to VOL UP while still holding the other buttons.
Do NOT let go of any of the buttons until recovery boots.

ashyx said:
Follow these instructions implicitly.
Hold POWER + VOL DOWN + HOME.
As soon as it restarts change to VOL UP while still holding the other buttons.
Do NOT let go of any of the buttons until recovery boots.
Click to expand...
Click to collapse
That's what I've been doing exactly but for some reason it just goes right back to the logo screen. I was able to get into the recovery mode one time out of 100 and I went through the process of factory reset but it didn't solve the problem. Now I can't get back into it. It's weird because I have no problem getting into the download mode pressing the volume down but volume up doesn't seem to work. Not sure why or what to do

I'd try reflashing stock recovery then try booting into it again.
If it flashes then you should be able to boot into it.
http://www.mediafire.com/?qyybs0m1yln443x

ashyx said:
I'd try reflashing stock recovery then try booting into it again.
If it flashes then you should be able to boot into it.
http://www.mediafire.com/?qyybs0m1yln443x
Click to expand...
Click to collapse
How exactly would I do that? I'm not to inclined when it comes to this stuff so any help you can give would be appreciated

Install Samsung usb drivers, put your tab into download mode, connect to pc, run Odin, load the file into the AP slot then click start.
http://forum.xda-developers.com/attachment.php?attachmentid=3109599&d=1420980613

i think i bricked mine...
These are the 2 screens i get whenever i try anything

joker616 said:
i think i bricked mine...
These are the 2 screens i get whenever i try anything
Click to expand...
Click to collapse
You haven't bricked anything, there could be any number of reasons why it won't boot past the logo.
Easiest way to resolve it would be to reinstall the stock rom.
The second image is download mode.

joker616 said:
i think i bricked mine...
These are the 2 screens i get whenever i try anything
Click to expand...
Click to collapse
That's the exact same situation I'm in. Every time I restart it I can't get passed that damn Samsung logo screen. I tried the whole flash with Odin process but I realized that when I connect the tablet to the computer, I get an "MTP Device Driver Failed" message so I'm assuming since the computer doesn't recognize it, even tried with KEIS and it doesn't, that I'm unable to complete the Odin job because that goes until 'Initialization' and stops there. Were you able to fix yours?

casual167 said:
That's the exact same situation I'm in. Every time I restart it I can't get passed that damn Samsung logo screen. I tried the whole flash with Odin process but I realized that when I connect the tablet to the computer, I get an "MTP Device Driver Failed" message so I'm assuming since the computer doesn't recognize it, even tried with KEIS and it doesn't, that I'm unable to complete the Odin job because that goes until 'Initialization' and stops there. Were you able to fix yours?
Click to expand...
Click to collapse
Are you saying you still can't get into recovery mode?
Also what is your device model?

ashyx said:
Are you saying you still can't get into recovery mode?
Also what is your device model?
Click to expand...
Click to collapse
No I can't. I've tried a thousand times in all different sequences of holding the three buttons and it just doesn't go. It's SM-T800. They screen shots on the first page is exactly what I get. Either the logo screen when trying to get into recovery or download mode which it has no problem going into.

casual167 said:
No I can't. I've tried a thousand times in all different sequences of holding the three buttons and it just doesn't go. It's SM-T800. They screen shots on the first page is exactly what I get. Either the logo screen when trying to get into recovery or download mode which it has no problem going into.
Click to expand...
Click to collapse
The two files below should boot you directly into recovery as soon as you start the tablet if you can flash them. Flash with Odin from the AP slot.
Make sure you put the device into DOWNLOAD mode first then connect your usb cable!
You can then do a factory reset and then try and flash the stock rom.
Stock recovery
Twrp recovery
.

ashyx said:
The two files below should boot you directly into recovery as soon as you start the tablet if you can flash them. Flash with Odin from the AP slot.
Make sure you put the device into DOWNLOAD mode first then connect your usb cable!
You can then do a factory reset and then try and flash the stock rom.
Stock recovery
Twrp recovery
.
Click to expand...
Click to collapse
Yeah I tried that too but when I connect the tablet to my comp, I get this 'Samsung Mobile MTP Device Failed' message so my comp doesn't even recognize the tablet. I even tried connecting with KEIS but that doesn't see it either because of that error. Idk if that's related to this issue that I'm having but I'm assuming that since the comp doesn't recognize the tablet because of that error, it won't finish the ODIN job. I get up to 'Initialization' and nothing after. I tried uninstalling and reinstalling the Samsung drivers and that didn't work either. Seems I can't catch a break here

casual167 said:
Yeah I tried that too but when I connect the tablet to my comp, I get this 'Samsung Mobile MTP Device Failed' message so my comp doesn't even recognize the tablet. I even tried connecting with KEIS but that doesn't see it either because of that error. Idk if that's related to this issue that I'm having but I'm assuming that since the comp doesn't recognize the tablet because of that error, it won't finish the ODIN job. I get up to 'Initialization' and nothing after. I tried uninstalling and reinstalling the Samsung drivers and that didn't work either. Seems I can't catch a break here
Click to expand...
Click to collapse
Mtp, kies and anything else is irrelevant, they are OS dependent.
Just put the tablet into download mode. Download mode works in boot loader mode. No need for the os.

ashyx said:
Mtp, kies and anything else is irrelevant, they are OS dependent.
Just put the tablet into download mode. Download mode works in boot loader mode. No need for the os.
Click to expand...
Click to collapse
Ok than Idk why it doesn't go passed the 'Initialization'. I tried multiple times and keep getting stuck on that

casual167 said:
Ok than Idk why it doesn't go passed the 'Initialization'. I tried multiple times and keep getting stuck on that
Click to expand...
Click to collapse
Ok we need to take this step by step as theres something amiss here.
DID YOU AT ANY POINT WHILE THE TABLET WAS WORKING ENABLE 'REACTIVATION LOCK'?
1. Ensure the Samsung drivers are installed (important) Samsung usb driver
2. Before connecting anything to the PC put the tablet in DOWNLOAD mode first.
3. Plug the USB cable into a USB 2 port
4. Wait for the 'ADDED' message (if you dont get this it wont work)
5. Load the tar file into the AP slot.
6. Click START
7. If it doesn't start to flash reboot the tablet directly back into DOWNLOAD mode without touching anything else then unplug and replug the USB cable back in.
8. If it still doesn't flash try ODIN 3.07 ODIN
9. Report back and post a screenshot (if it doesn't work).

ashyx said:
Ok we need to take this step by step as theres something amiss here.
DID YOU AT ANY POINT WHILE THE TABLET WAS WORKING ENABLE 'REACTIVATION LOCK'?
1. Ensure the Samsung drivers are installed (important) Samsung usb driver
2. Before connecting anything to the PC put the tablet in DOWNLOAD mode first.
3. Plug the USB cable into a USB 2 port
4. Wait for the 'ADDED' message (if you dont get this it wont work)
5. Load the tar file into the AP slot.
6. Click START
7. If it doesn't start to flash reboot the tablet directly back into DOWNLOAD mode without touching anything else then unplug and replug the USB cable back in.
8. If it still doesn't flash try ODIN 3.07 ODIN
9. Report back and post a screenshot (if it doesn't work).
Click to expand...
Click to collapse
I know for a fact that I never enabled the Reactivation Lock.. But you know, after literally days and hours including my entire weekend just searching the internet and trying every possible fix scenario that people have tried, I just gave in and sent it to Samsung this afternoon to have them fix it. Nothing I was doing seemed to work and I do believe I tried everything within my little knowledge to try. Let me ask you though, when I get it back in normal working order, would going through the steps to install the TWRP recovery and a ROM prevent me from being in this situation again or at least be able to actually fix it on my own?

If you dont mind tripping Knox and possibly warranty then I believe installing custom recovery is one of the best tools you can Install to a device.
It can get you back to a working state in minutes if you make a full backup.
It's a no brainer to install custom recovery if you intend to root and modify the device in any way.

[Q] Tab Pro 8.4 won't turn on

Hello everyone! My Galaxy Tab Pro 8.4 won't turn on anymore. I tried charging it, that wasn't the issue. I left it on the charger and nothing changed. I plugged it into my PC and it didn't make any noises and it doesn't even recognize it as an unrecognizable device. Is there any button combo to see if it's 100% fried or not?
A couple of weeks ago I rooted it and updated it to another ROM, but it had been working PERFECTLY since then! WEEKS!
Any suggestions?

power button
Press and hold the power button for 30 - 40 seconds and see if it powers up. I had this problem yesterday.

dwcasey said:
Press and hold the power button for 30 - 40 seconds and see if it powers up. I had this problem yesterday.
Click to expand...
Click to collapse
This did not work

Hold the power button down for 2 minutes and don't let go, also hold vol up while doing it to see if you can get into recovery.
keep it plugged into the charger while you do this.

otyg said:
Hold the power button down for 2 minutes and don't let go, also hold vol up while doing it to see if you can get into recovery.
keep it plugged into the charger while you do this.
Click to expand...
Click to collapse
OK, this worked. How can I unroot and restore the OEM bootloader and everything?
Before flashing I made a TWRP Backup, as well as a Flashify-backup.
I have these two folders on my desktop.

zkyevolved said:
OK, this worked. How can I unroot and restore the OEM bootloader and everything?
Before flashing I made a TWRP Backup, as well as a Flashify-backup.
I have these two folders on my desktop.
Click to expand...
Click to collapse
to restore everything you will need to boot into download mode , if you are in download mode now you can use kies or odin to flash the stock firmware and this will correct everything.
to boot to download mode its either (Power + vol down) , or (power + vol up) , try both until you see it say download mode., or if you are currently in twrp you can select reboot->download mode
you can get th stock firmware here
http://www.sammobile.com/firmwares/database/SM-T320/
(Cellular south) XAR is USA wifi model.

otyg said:
to restore everything you will need to boot into download mode , if you are in download mode now you can use kies or odin to flash the stock firmware and this will correct everything.
to boot to download mode its either (Power + vol down) , or (power + vol up) , try both until you see it say download mode., or if you are currently in twrp you can select reboot->download mode
you can get th stock firmware here
http://www.sammobile.com/firmwares/database/SM-T320/
(Cellular south) XAR is USA wifi model.
Click to expand...
Click to collapse
And this will remove root, TWRP and any custom roms?

zkyevolved said:
And this will remove root, TWRP and any custom roms?
Click to expand...
Click to collapse
yeah it will be like when you first bought it.
btw when using Odin3 put the firmware under the AP box, don't mess with any options.

BootLoop post Viper4Android module on Magisk with Lineage 15/Oreo

Lineage /Oreo was installed thru TWRP 3.xxx, running fine but unhappy , no Viper4Android , so I installed it as a module on Magisk,
after installing the driver, was ask to reboot as directed, but went into bootloop , stuck on a boot loop " Set Warranty Bit : kernel " top left corner and Samsung Galaxy Note 3 on screen ; I tried Vol Up +Home+ power combo and all other combi I could think but no luck , Odin wont recognize my phone, tried Samsung 300k tool with no luck, I fell like a newbie after using so many ROMs on all of my devices, I google how to get back to download mode but no luck, I need help to make my Samsung note 3 work again, PLEASE. THANKS.

Hi,
I have same phone but I'm running Resurrection Remix 6 which is based on LineageOS 15.1 and I'm able to use the Viper module through Magisk 16.3 without any problems. No bootloops, no nothing.
I never would have guessed that a sound mod could brick the device to the point that the buttons no longer function. Hopefully other users will chime in and help you fix it.
Best of luck.
EDIT: Try taking the battery out to force it to shut down and then try the recovery/download mode technique again. Sometimes, it'll end up in a bootloop and the buttons will be become unresponsive. I know it may seem a bit strange, but that scenario is entirely possible given the age of the device.
Sent from my SM-N900T using Tapatalk

AndroidHacker99 said:
Hi,
I have same phone but I'm running Resurrection Remix 6 which is based on LineageOS 15.1 and I'm able to use the Viper module through Magisk 16.3 without any problems. No bootloops, no nothing.
I never would have guessed that a sound mod could brick the device to the point that the buttons no longer function. Hopefully other users will chime in and help you fix it.
Best of luck.
EDIT: Try taking the battery out to force it to shut down and then try the recovery/download mode technique again. Sometimes, it'll end up in a bootloop and the buttons will be become unresponsive. I know it may seem a bit strange, but that scenario is entirely possible given the age of the device.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
I did tried RR 6, but I had trouble with 1.) power Button menu option, screenshot/screen record , 2.) Viper4Android , a must have on all my Android devices, and last 3.) latest Android version , if I dont get the first 2 obsession , that's when I switched to a different ROM (LOL), but seriously , all I need is to get HELP to get back to download mode again, Vol Up + Home + Power, did that for 2 days approaching the 3rd day (LOL). HEEEELLLLLPPPPPPP.

Isn't download mode volume down + home + power?

Aykee said:
I did tried RR 6, but I had trouble with 1.) power Button menu option, screenshot/screen record , 2.) Viper4Android , a must have on all my Android devices, and last 3.) latest Android version , if I dont get the first 2 obsession , that's when I switched to a different ROM (LOL), but seriously , all I need is to get HELP to get back to download mode again, Vol Up + Home + Power, did that for 2 days approaching the 3rd day (LOL). HEEEELLLLLPPPPPPP.
Click to expand...
Click to collapse
You need to take the battery out to force it out of the bootloop then push volume DOWN, home & power.
Sent from my SM-N900T using Tapatalk

audit13 said:
Isn't download mode volume down + home + power?
Click to expand...
Click to collapse
Sorry, I mean Vol down but no luck.

You may have to try a USB jig to get into download mode.
https://forum.xda-developers.com/galaxy-s3/general/ref-borrow-usb-jig-near-updated-t1891197

Aykee said:
Sorry, I mean Vol down but no luck.
Click to expand...
Click to collapse
Can you also not boot into TWRP by holding Home+PWR+Volume up? If so you can boot to Download Mode from there.
Sent from my toaster using Magic

audit13 said:
You may have to try a USB jig to get into download mode.
https://forum.xda-developers.com/galaxy-s3/general/ref-borrow-usb-jig-near-updated-t1891197
Click to expand...
Click to collapse
Sounds like a good idea, ordering on amazon..thanks

ludeawakening said:
Can you also not boot into TWRP by holding Home+PWR+Volume up? If so you can boot to Download Mode from there.
Sent from my toaster using Magic
Click to expand...
Click to collapse
I did all button combination, cant get into download nor recovery mode , am not sure if buttons are wack but it feel responsive and clicky but thanks anyway am going for the USB jig, I never had one.

audit13 said:
You may have to try a USB jig to get into download mode.
https://forum.xda-developers.com/galaxy-s3/general/ref-borrow-usb-jig-near-updated-t1891197
Click to expand...
Click to collapse
I got the USB jig but nothing happen after plugging in, any other idea please?

Removed the battery, inserted the jig, and then inserted a charged battery?

audit13 said:
Removed the battery, inserted the jig, and then inserted a charged battery?
Click to expand...
Click to collapse
The jig that I bought didnt do anything so I make my own, I can go to download mode now, installed this ROM/firmware N900TUVUCNB4_N900TTMBCNB4_N900TUVUCNB4_HOME.tar.md5 succesfully but wont go pass beyond the tmobile logo, tried a few more firmware and lately this N900TUVUFOL1 and also , am stuck to Tmobile logo, anybody knows which firmware would likely bring my note 3 back to life, thanks in advance.:

Try this:
Uncheck everything in Odin except f reset time. Flash the latest ROM again. When you see the word "reset" in the status WIndow, remove the USB cable from the phone, remove the battery, replace battery, boot into recovery mode using buttons, factory wipe, and reboot.

audit13 said:
Try this:
Uncheck everything in Odin except f reset time. Flash the latest ROM again. When you see the word "reset" in the status WIndow, remove the USB cable from the phone, remove the battery, replace battery, boot into recovery mode using buttons, factory wipe, and reboot.
Click to expand...
Click to collapse
After "reset" status, I did remove cable, remove batt and boot up to recovery, the blue light lit up as if its going to recovery mode , android logo showed up but phone boot up to normal but not pass beyond tmobile logo, so I did CF-root via odin , but still not booting to recovery.

Try flashing the entire ROM in AP.

audit13 said:
Try flashing the entire ROM in AP.
Click to expand...
Click to collapse
Thanks Audit13,
I manage to restore my Note 3 to TMobile Android 5 using repair firmware , it looks like I wipe out the partition ,My phone runs like new, am just wondering why I cant go to Download mode with button combinations of Volume -/Home/power , tried to install twrp via Odin, it says PASS but Vol +/Home/Power wont lead me to bootloader, did tried CWM , it will boot up but before I could start using it, it will reboot to normal and I could not go back to bootloader with button combo Vol+/Home/Power........HELP...

Download mode is volume down+home+power.
To flash TWRP with Odin, try this:
Open Odin and only check f reset time. Flash TWRP. When you see the word reset in the Odin status window, remove the USB cable from the phone, remove the battery, replace battery, press home + volume up + power.

N900TUVUFOB6_N900TTMBFOB6_TMB and N900 PIT - are the files am using after screwing up my partition( I dont know how I did that ), this Note 3 is running like a hot knife on a butter BUT the only bug I notice is Volume Up + Home + Power ( recovery) NOR Volume Down + Home + Power (download ) does not work, I can only go to download mode using a USB JIG and no other way. I can flash TWRP via Odin with Auto-reboot not ticked , so I could remove cable, battery , hoping to get me to recovery mode but I couldnt. Did I miss a step?I need help.

Have I just bricked my faithful A70?

So I tried to install TWRP and followed the steps, used ODIN v3.14, it tried to upload something but failed with an error.
Now the phone has gone into a perpetual restart cycle:
1) Reboot (by itself or Vol Down + Power)
2) Blank screen with: "Galaxy A70 - Secured by Knox - Powered by Android"
3) Screen with: "This phone's bootloader is unlocked and its software integrity... - Press power key to continue"
4) Blank screen with: "Galaxy A70 - Secured by Knox - Powered by Android"
5) Blank screen with: "SAMSUNG" for a very long time
6) eventually back to step 1
****************
Is there a way to get back this phone?

I was flashed twrp normally and nothing happened for me. Did you pressed vol up+power ASAP after flash successful ? If not, go to download mode and flash again, then press vol up+power immediately.

I never managed to flash TWRP, ODIN displayed an error when I tried.

1. Your using the wrong version of odin. You need 3.13.3
2. Sounds like your not key comboing fast enough?
3. You can not hard brick the A70. If its in a boot loop, plug into pc and Continue to hold vol up and down till it boots to download mode. Flash latest stock version then reboot.
[CLOSED] Delete
Mod edit: Thread closed as the threadowner removed the content of the opening post! Oswald Boelcke, Senior Moderator Delete
forum.xda-developers.com

Zilliman said:
I never managed to flash TWRP, ODIN displayed an error when I tried.
Click to expand...
Click to collapse
Did you boot to Android, check oem in dev options then power off and then enter download mode? Using odin 3.13.3?

Jinetty21 said:
I was flashed twrp normally and nothing happened for me. Did you pressed vol up+power ASAP after flash successful ? If not, go to download mode and flash again, then press vol up+power immediately.
Click to expand...
Click to collapse
Dont press power during the end process, its power and vol down till screen goes blank then immediately let go and press and hold just vol up.

OK, I am now in the "Downloading..." screen and the phone is waiting.
All I have on my PC is:
recovery.tar
twrp-3.6.1_9-0-a70q.img.tar
DFE.zip
I do not have the Samsung firmware or anything else.
What should I do now?

Zilliman said:
OK, I am now in the "Downloading..." screen and the phone is waiting.
All I have on my PC is:
recovery.tar
twrp-3.6.1_9-0-a70q.img.tar
DFE.zip
I do not have the Samsung firmware or anything else.
What should I do now?
Click to expand...
Click to collapse
Get the original firmware for your phone from a 3rd party website.

Zilliman said:
OK, I am now in the "Downloading..." screen and the phone is waiting.
All I have on my PC is:
recovery.tar
twrp-3.6.1_9-0-a70q.img.tar
DFE.zip
I do not have the Samsung firmware or anything else.
What should I do now?
Click to expand...
Click to collapse
Get frija from the link in my guide under tools, install it on your pc, then use it to download your latest stock firmware. Make sure you have odin 3.13.3 as well
In frija, enter the model number and the region code of the A70
In my case it would be SM-A705MN/ TTT
Do NOT flash other models, it must be for your Model. Also, dont flash csc_home in this instance, use csc. When loading the AP file, it will take a little bit to load in and you may see odin has stopped working, ignore that and it will eventually load, make sure auto reboot is unchecked everytime you use odin. The first step in my guide says to download and flash latest stock firmware. Anytime your going to do modifications to a device, make sure to have the latest stock firmware first.

Many thanks for suggestions.
I managed to download the stock firmware from https://www.sammobile.com/samsung/galaxy-a70/firmware/SM-A705FN/BTU/#SM-A705FN and have uploaded it using ODIN 3.14 The phone has now started, like new / factory reset.
I am now setting it up (Samsung firmware) just to make sure I have got my phone back.
After I will try to zap and upload another ROM.

MarvinMod said:
Dont press power during the end process, its power and vol down till screen goes blank then immediately let go and press and hold just vol up.
Click to expand...
Click to collapse
I didn't said that hold power button during flash. Press vol up+power after successful flash, that means when odin say pass then phone goes black and boots, while bootsplash is coming, immediately press and hold vol up+power to switch to recovery.

Jinetty21 said:
I didn't said that hold power button during flash. Press vol up+power after successful flash, that means when odin say pass then phone goes black and boots, while bootsplash is coming, immediately press and hold vol up+power to switch to recovery.
Click to expand...
Click to collapse
Its not up+power after successful flash.
Its down+power till screen goes blank then immediately hold vol up only. Is what im trying to tell you. It will NOT work the way you described.

Zilliman said:
Many thanks for suggestions.
I managed to download the stock firmware from https://www.sammobile.com/samsung/galaxy-a70/firmware/SM-A705FN/BTU/#SM-A705FN and have uploaded it using ODIN 3.14 The phone has now started, like new / factory reset.
I am now setting it up (Samsung firmware) just to make sure I have got my phone back.
After I will try to zap and upload another ROM.
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Glad you got her going. Thought you said you had a GM not an FN but if its working

MarvinMod said:
Its not up+power after successful flash.
Its down+power till screen goes blank then immediately hold vol up only. Is what im trying to tell you. It will NOT work the way you described.
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It's not necessary, i can go up to recovery with what i'm saying. What do you mean by vol down+power ? That doesn't do anything. BTW I have FN model.

Jinetty21 said:
It's not necessary, i can go up to recovery with what i'm saying. What do you mean by vol down+power ? That doesn't do anything. BTW I have FN model.
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In download mode, Android 11, to exit, it litterly tells you on the screen to hold vol down and power to reboot. Vol up and power does nothing in this state. To get to twrp from download mode, hold vol down and power till screen goes blank and then press and hold vol up. This will boot to twrp. Other ways to boot to twrp is power off device, plug into pc, wait for it to charge, then hild vol up and power till it boots or if magisk is installed, use magisk reboot options.
Dude, your key combos and information is incorrect. You can not reboot to twrp from download mode by holding vol up and power.

Samsung changed the keymap combination to boot into recovery on 3.1, so to boot into recovery stock or whatever it is, just follow the steps:
Connect your cellphone to the USB port.
Press on Volume UP during boot.
Samsung does weird things

haky 86 said:
Samsung changed the keymap combination to boot into recovery on 3.1, so to boot into recovery stock or whatever it is, just follow the steps:
Connect your cellphone to the USB port.
Press on Volume UP during boot.
Samsung does weird things
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Yes, that's.what i'm saying. I'm using September Update's bootloader to get rid of this weirdness lol

MarvinMod said:
Dude, your key combos and information is incorrect. You can not reboot to twrp from download mode by holding vol up and power.
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My key combo is true, actually the wrong one is yours This is the valid way also on the latest bootloader but like haky86 said, on latest bootloader Samsung wants you to plug USB cable to do this.

So we are agreed, there is no way to get to TWRP unless you are connected to USB? For example, on my one old phone, I used to keep TWRP backups on the SD card, and I could restore anywhere, I did not need to be near the PC with a USB cable.

Zilliman said:
So we are agreed, there is no way to get to TWRP unless you are connected to USB? For example, on my one old phone, I used to keep TWRP backups on the SD card, and I could restore anywhere, I did not need to be near the PC with a USB cable.
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there's a fix in the telegram group, I don't remember which was because I left all cringy groups.