Samsung Galaxy S7/S7 Edge black screen try this [solution] without flash - Samsung Galaxy S7 Edge Guides, News, & Discussion

hi every one :fingers-crossed:
in this simple guide i will explaind you how to start yor galaxy s7/s7 edge normaly if its stuck at black screen,basicaly its not bricked dont worry about that
1- you need to plug your phone on pc and press and hold the power button and volum - for 15 second when your phone vibrat then release the buttons.it should start normaly now if dont then go to next steeps
2- repeat the same way but instead the volum - hold the volum +
3- unplug phone from pc and enter on recovery mode with power button and volum - and home button,chose wipe cache partiton and reboot your phone.your samsung galaxy s7/s7 edge will work fine,if not then go the latest step
4- flash your phone with stock firmware
for s7/s7 edge go to http://forum.xda-developers.com/s7-edge/how-to/collection-firmware-rom-pit-files-t3326706 or http://forum.xda-developers.com/s7-...n-sm-g935f-t3337890/post65870598#post65870598 or http://forum.xda-developers.com/galaxy-s7/how-to/firmware-file-pit-galaxy-s7-s7-edge-t3345885
hit :good: if it helped you

This isn't totally clear. The title says "without flash" but step 4 says "flash your phone with stock firmware."

3 ways to get the solution without flash it,if not,you must flash it but there is already 3 ways try them

I found that the only thing that worked was to reformat my sd card.
I backed it up to a pc at which stage I found that some photos were unreadable. I have a strong feeling these corrupt files were causing the issue.
What I did:
1. Performed a backup of the sd card on a computer.
2. Formatted the card.
3. Put thefiles back on.
4. Put the card back into the phone.
5. Restarted handset.
Now, two weeks on, not a single lockup!
Enjoy.

darcus said:
I found that the only thing that worked was to reformat my sd card.
I backed it up to a pc at which stage I found that some photos were unreadable. I have a strong feeling these corrupt files were causing the issue.
What I did:
1. Performed a backup of the sd card on a computer.
2. Formatted the card.
3. Put thefiles back on.
4. Put the card back into the phone.
5. Restarted handset.
Now, two weeks on, not a single lockup!
Enjoy.
Click to expand...
Click to collapse
First i thought it was the sd card also but after testing it a few months now i believe it has something to do with the App Power Saving mode that is turned on by default where some apps cant handle it and it will freeze your phone. When i turned this feature off the phone seems to work fine while it used to lock up a couple times a day.

Tny that works for me. Good man

Related

Summary of the SD card ROM backup/update method

While a lot has been written, the following should provide an easy-to-follow guide:
Preparation:
1. A torch (read on and you will know why)
2. 256M SD card
3. Download ntrw.exe, romupdate.exe, hexedfull.exe from the ftp of this forum to c:\ and install hex editor
4. Download the appropriate ROM file (hereafter referred to as "newrom.nb1").
5. Cancel USB in ActiveSync
6. Use Sprite Backup to backup your ppc
Backup original ROM:
1. Put pocket pc into the boot loader mode (hold both on/off and camera buttons at the same time while resetting).
2. Insert empty SD card.
3. Connect pocket pc to pc through USB.
4. Run romupdate.exe on pc.
5. Select “\\.\WCEUSBSH001” in port settings. In the popup windows, enter “d2s” and press enter.
6. Don’t get panic to see the pocket pc screen goes dark. Use your torch and you will see the download percentage. Wait until it reaches 100% and shows “CheckSum is OK!”.
7. Insert SD card into card reader of the pc. Ignore the “format SD card” message and click “No”.
8. Run “command” to go into DOS prompt and change to root directory (cd c:\). Enter “ntrw read oldrom.nb1 s:” where s is the drive of your SD card.
9. Ignore the “Data error <cyclic redundancy check>” message. You should save another copy of this important rom file “oldrom.nb1”.
Change header of newrom.nb1:
1. Right click on oldrom.nb1 to open hex editor. Copy the first 416 bytes.
2. Open the downloaded newrom.nb1 file and overwrite the first 416 bytes with those of the old rom.
3. Save the edited newrom.nb1. You may save another copy of this important file.
4. Go to the command prompt and enter “ntrw write newrom.nb1 s:” to write it to the SD card. Ignore the error message “The parameter is incorrect”.
Update the ROM:
1. Insert SD card into pocket pc and put it to boot loader mode again (on/off + camera + reset). Use you torch to check the dark screen.
2. When it shows “Press Power to flash”, press the on/off button. Wait until it reaches 100% and ignore the message “Download Fail - CheckSum Fail”
3. Soft reset your pocket pc.
4. You may have to reinstall your software, unless you are familiar with the advanced features of Sprite Backup.
Ask you a question.
Does it backup 3 parts of rom (OS rom, extended rom and Radio rom)?
I am trying to backup my old Qtek Rom so I can install an update. I follow the steps to perfection..
The file created by ntrw is 999Mb big and at the end of the file I get an error stating that "parameters are incorrect"
Does this mean that the backup was not done successfully?
Why is the file so large?
Thanks for your help
ntrw get image SD card. Use SD card 256 Mb.
SD Card update problem
Hi I used ntrw.exe to backup my original rom to an SD card. It all went ok and I was able to clear the SD, write the rom back on the SD and put it in my M500. Normally I got a menu to press the power button to flash the rom to my phone, but now whatever I do I can't get the menu back. I won't get the option "Press power button" to flash. What I also see is that somethimes when I put the SD back in my laptop it is totaly empty. Normaly it would ask me if I want to format the SD because it can't be read. Can anybody help??
Thanks!
Dear All,
this is my first time to this site.
Could you please send me the download links for the files that are necessary (or the files themeselves) to backup the ROM (ntrw.exe, romupdate.exe, hexedfull.exe )
Thanks a million.
Will
i found this http://www.ccoo.net/MDAFlash/ntrw.exe
Thank you for this wonderful guide !!!
I am trying to backup my I-Mate JAM's ROM with a 256 MB SD card. However I have a similiar problem where when the ntrw.exe completed with the same "parameters are incorrect" error. The created ROM image is about 247,040 KB.
Is this correct? I did make sure the SD card is empty before the backup process (by deleteing everyfile on it), or should I use some proper method to ensure the SD card is actually completely empty?
Thanks in advance for any help!
Mine came up with that every time, but worked ok. I am trying to do the Anasky ROM update to my magician, and the backup i made of the original rom was fine to restore, even though i got that error.
mitchello said:
Mine came up with that every time, but worked ok. I am trying to do the Anasky ROM update to my magician, and the backup i made of the original rom was fine to restore, even though i got that error.
Click to expand...
Click to collapse
Thanks a lot for this info! It certainly make me feel a lot more confident about what I am doing
Thanks again !
Jyhnc said:
Thank you for this wonderful guide !!!
I am trying to backup my I-Mate JAM's ROM with a 256 MB SD card. However I have a similiar problem where when the ntrw.exe completed with the same "parameters are incorrect" error. The created ROM image is about 247,040 KB.
Is this correct? I did make sure the SD card is empty before the backup process (by deleteing everyfile on it), or should I use some proper method to ensure the SD card is actually completely empty?
Thanks in advance for any help!
Click to expand...
Click to collapse
someone in this forum told us that the rom size is vary and closed to the size of your sd card.
I used 128mb to backup and restore, it worked fine.
Has anyone experienced the problem of trying to reflash the device with the SD and when placed in Bootldr, the display just says serial and never progresses to press power to flash??
thanks
Jim
turn off the USB connection in your activesync, it will interfere the upgrade.
Found the fault, I reconnected the USB whilst entering the bootldr with the SD in socket and worked fine... Quite strange though as I couldnt remember having the USB connected the lasst time I performed the process
rgds
jim
jfran said:
Found the fault, I reconnected the USB whilst entering the bootldr with the SD in socket and worked fine... Quite strange though as I couldnt remember having the USB connected the lasst time I performed the process
rgds
jim
Click to expand...
Click to collapse
Hi All,
I was stuck at the Serial for a Looooooong time. Nothing worked. Until I did the following:
1) Using HHDHexeditor, copy the first 416byte (NOT 220byte!)
2) Write the copied original backup ROM into the new ROM (.nb1 file)
3) Put into your 02 Mini
4) VERY IMPORTANT! - Plug into your USB PORT!
5) Then I see the "Press Power button to Flash!"
and I am happily flashing my device now ... My guess is that it needs to be on external power in order to upgrade .... Thanks everyone .. can't wait to see my new baby with 27Mb storage! :twisted:
I'm using 256Mb SD Card ....
Alvin
How can i know the backup file name stored in the memory card? (*.nb1)
Thx~~
i am not seeing the popup window in which to select "d2s"...can anyone help?
update: Ok, so i was just temporarily blind! Have managed to continue and have fingers crossed it is ok.
2. When it shows “Press Power to flash”, press the on/off button. Wait until it reaches 100% and ignore the message “Download Fail - CheckSum Fail”
3. Soft reset your ppc.
After this.... how I do the soft reset with my ppc?? Connect or diconnect with the USB?? Coz I can't turn it back to the normal from boot loader mode even I do soft or hard reset after the rom flashing.......why?? :shock:
cojones said:
update: Have managed to continue and have fingers crossed it is ok.
Click to expand...
Click to collapse
I get the message ROM size isn't enough when i press the power button to flash from the sd card...why is this?
Talents said:
5. Select “\\.\WCEUSBSH001” in port settings. In the popup windows, enter “d2s” and press enter.
Click to expand...
Click to collapse
WTF ??? The only options are COM1 COM2 or COM3 and the Baud rate.
What a POS!

[Q] From Cyanogen Mod to none...HELP!

Here is my situation, my phone is HTC myTouch 3g...I wanted to lessen the internal or system's space but can't find the right software to do it in Market so I played with my phone and what I did is restart chosing "Recovery". When I reached prompts and commands area I chose to wipe out battery memory (don't know what was the exact term but something like that)...so now, my battery won't charge plus when I did "Reboot Recovery", the phone won't start as if it wipes out all the system! So now, I'm hanging on for 30 minutes or so but nothing happened when I turned my phone on, it just shows HTC Magic and nothing else. I wonder how to fix this problem. My phone won't even connect to the PC via USB or even if I plug it through AC charger.
OK, so I figured out how to go to the Clock Recovery but still, it won't boot! Help!
Full Wipe
Wipe Cache
go to mounts and storage
format boot
format system
format data
go back to main menu
install .zip from SD Card
flash CM from there and reboot.
Replacing rom in HTC HD2 NAND
hi, new to this rooting stuff. Got android rom loaded on NAND of my htc hd2. This not like this rom so i want to try a new rom. My question is do i have to erase my phone or do anything to it before i flash a new rom. thanks.
Problem Solved but...
Here is what I did to the problem:
1. I downloaded Cyanogen Mod 6 for my HTC Magic to my PC. I also downloaded the Google Tiny Apps. I put both into a newly formatted SD card (must be FAT32).
2. Since I still have the ClockWorkMod I restarted my phone by pressing the home and power button. I pressed install from flash from the options and it gave me options to open and install both of Cyanogen and/or Google Apps, I did Cyanogen update first then Google Tiny Apps. Note that there will be only two options. I forgot to write down the exact path name.The path names were obvious so you'll figure it out when you get there.
3. Just wait until the install is finished, look at the prompt in the screen until it says done.
4. Then reboot it using the options, just press the back button to go back to Clock's home screen.
Then it is done and solved.
BUT!!!!!! My problem now is that the backlight option is missing so my phone has no backlight now.........somebody help with that glitch???

Device encryption on root

With root i have been having problems encrypting my device, it just wouldn't work. But I think i have found a work around (well its worked for me) and I'd thought I'd share how I did it, I would be greatful if you do try please let me know if it worked ?
firstly go settings apps/all apps and disable super user. Then press the power button until the power off menu pops up. Press and hold the power off to bring up safe mode option click ok. Device will reboot into safe mode, then encrypt your device [You need over 80% battery and to be plugged into your charger]
Wait for it to encrypt your device.
If you choose to do your SD card you will need to unencrypt before you take it out of your phone. I found out the hard way when i lost all my data on my sd card when took it out to put my camera SD card in to load some photos onto my phone.
Again please let me know if this works for you or not? Thanks ?
Restart in safe mode pictures (i forgot to add in the first post)

Huawei Y530 hard reset fail

Hello folks, my roommate recently tryed to hard reset his Huawei Y530 but since he has a bad battery, the phone turned off in the middle of the process. When he turned it on there was a message:
Recovery image verify failed, please update to the authorized images
Well, i downloaded the stock firmware image onto the SD card and starter the recovery process, but it gets stuck on FORMATING/DATA. I left it there for 12 hour and nothing happened. When i aborted it, the same stupid message comes back:
Recovery image verify failed, please update to the authorized images
Any body have an idea? Any help is appreciated.
Kind regards
Did some research and found this, hope it works:
1.Extract and copy dload Folder into root of SD card.
2. Power off mobile and insert SD Card and press and hold Vol+ and Vol- and Power on.
3. wait for update complete.
4. Enjoy.
5. Thanks Button. ?
a. felon said:
Did some research and found this, hope it works:
1.Extract and copy dload Folder into root of SD card.
2. Power off mobile and insert SD Card and press and hold Vol+ and Vol- and Power on.
3. wait for update complete.
4. Enjoy.
5. Thanks Button.
Click to expand...
Click to collapse
That doesnt work, already tryed that, if the image is in the dload folder, the phone doesnt even see it.
Maybe your download is corrupt try downloading another file.
Nope, it only starts without the dload folder, but eventually gets stuck on formating/data

New to Android Rooting looking for information on Verizon HTC One M8 rooting

Hello all, as the title says, I'm new, both to the site and android rooting in general.
I used the latest sunshine to s-off, although now i read that that wasn't necessary. What I'm trying to do is get rid of the bloatware on my phone and gain a little more control over the device itself. It is a verizon phone on the tmobile network and things like verizon vm and the verizon cloud apps and such are really just taking up space.
So the question is, now that I have s-off'd the device, where do I go next? I managed to get TWRP on there, but I just don't know where to go from there. Yes, I searched the site, Yes I searched Google, and yes, I prayed to the Skating Droid of Legend.
Any advice would be great. All of the information i have found on my own is about 2 years old.
If you already S-OFF'd it, and even got twrp going, I recommend the only thing left to do is downloading a ROM from the Android Development section (in ZIP format), saving it to your phone's internal memory or external sd card, then flashing it via twrp. That way you will have a rooted, pre-de-bloated phone. In my case, the ROM I liked best and that worked fine for me was S-ROM-JW-5.2.5 (doanloaded from this thread http://forum.xda-developers.com/ver...ment/romthe-worlds-100-m9-1-32-401-8-t3065304).
I personally selected "Global" during the flashing options, as I do not use Verizon network (I live in Brazil currently). But even so, you can change to/from Global and Verizon (and something else) in the Android settings after you are already set up.
To flash, first place the ZIP file in your phone (do not unzip it). Either internal storage or external sd-card. Then turn the phone off, unplug it (make sure you have plenty of battery like 40% or more just to be safe). Then turn the phone back on booting into twrp (power + down vol, then select Recovery, then Power). Then select "Flash ZIP" and navigate to your ROM ZIP file select it and follow the prompts. Choose "full wipe" when prompted (this will only wipe internal storage system files and apps and such and not your external sd card). After flashing finishes, just let the phone reboot (you can select Reboot while still in the twrp recovery mode).
Do not panic during first boot, it takes several minutes in the HTC logo (like some 5 or 10 minutes) until Android itself shows up and starts building itself into your phone and booting up properly.
Please proceed carefully and just to be safe, before flashing the ROM, make a full BACKUP (theres the Backup utility inside twrp) and save the backup to your external sd card or PC. That way you can recover using that backup if needed (but you should be ok).
gamekill said:
If you already S-OFF'd it, and even got twrp going, I recommend the only thing left to do is downloading a ROM from the Android Development section (in ZIP format), saving it to your phone's internal memory or external sd card, then flashing it via twrp. That way you will have a rooted, pre-de-bloated phone. In my case, the ROM I liked best and that worked fine for me was S-ROM-JW-5.2.5 (doanloaded from this thread http://forum.xda-developers.com/ver...ment/romthe-worlds-100-m9-1-32-401-8-t3065304).
I personally selected "Global" during the flashing options, as I do not use Verizon network (I live in Brazil currently). But even so, you can change to/from Global and Verizon (and something else) in the Android settings after you are already set up.
To flash, first place the ZIP file in your phone (do not unzip it). Either internal storage or external sd-card. Then turn the phone off, unplug it (make sure you have plenty of battery like 40% or more just to be safe). Then turn the phone back on booting into twrp (power + down vol, then select Recovery, then Power). Then select "Flash ZIP" and navigate to your ROM ZIP file select it and follow the prompts. Choose "full wipe" when prompted (this will only wipe internal storage system files and apps and such and not your external sd card). After flashing finishes, just let the phone reboot (you can select Reboot while still in the twrp recovery mode).
Do not panic during first boot, it takes several minutes in the HTC logo (like some 5 or 10 minutes) until Android itself shows up and starts building itself into your phone and booting up properly.
Please proceed carefully and just to be safe, before flashing the ROM, make a full BACKUP (theres the Backup utility inside twrp) and save the backup to your external sd card or PC. That way you can recover using that backup if needed (but you should be ok).
Click to expand...
Click to collapse
That's extremely helpful, thank you very much.
It turns out that Verizon is much better in my area than T-Mobile, so I wont be removing all the stuff I originally wanted to, however anything that gives me more options and power should I choose to wield it, is a welcome addition.
Thanks again.

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