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Help Unbrick Coolpad F1 8297

I have a Coolpad F1 8297 (from Hong Kong) which is currently bricked. The problem is unique for me. Sometime back I had rooted my phone and installed custom Rom (something like ASOP don't remember exact name and probably it was for 8297w). The same was installed through TWRP recovery module. I am sorry but I must say that I was playing around with TWRP options and through mistake I deleted something and since that day my phone remained in boot-loop. I can only see the Chinese script & F1 displayed on the screen when I push the power button. I also cannot enter TWRP recovery. I tried to connect to the PC but even then it would not connect. I have installed all necessary drivers etc. Tried changing ports, cables and everything that I found on the net. When I attach the device to PC it connects and disconnects and this goes on endlessly. Please therefore help me getting a fix for my phone. Thanks.

rdcontractor said:
I have a Coolpad F1 8297 (from Hong Kong) which is currently bricked. The problem is unique for me. Sometime back I had rooted my phone and installed custom Rom (something like ASOP don't remember exact name and probably it was for 8297w). The same was installed through TWRP recovery module. I am sorry but I must say that I was playing around with TWRP options and through mistake I deleted something and since that day my phone remained in boot-loop. I can only see the Chinese script & F1 displayed on the screen when I push the power button. I also cannot enter TWRP recovery. I tried to connect to the PC but even then it would not connect. I have installed all necessary drivers etc. Tried changing ports, cables and everything that I found on the net. When I attach the device to PC it connects and disconnects and this goes on endlessly. Please therefore help me getting a fix for my phone. Thanks.
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=CVh5koB5ky4&ab_channel=Chinaphonearena

Mate 8 NXT-L29 BRICKED? LOOP? NO OS! NO RECOVERY! NO FASTBOOT! NO ADB! NEED HELP PLS

Hello guys..
I really have a problem right now! I appreciate everyone who tries to help me. I´ll try to expain what exactly is my problem with my Mate8.
Also I´d like to apologize for mistakes of gramatics, because im acutally from Germany..
So, my phone was working right, and actually everything was okay. With time it got so slowly, because storage was full with datas and so on. I tried to clean up some things to get it again a bit faster and so on, but that did not make it (at all). Also windows wont recognize the phone anymore. When plug in the USB it didnt even asked for data, charging or photos.. also I had problems with charging, it took toooo long for a few %.
I was on "KANGVIP" Rom (as much I know i changed stock to this custom rom) https://forum.xda-developers.com/mate-8/development/rom-kangvip-slim-t3318572
Time passed untill 3 days I decided to flash a new rom normally, like put rom on sd card, wipe dalvic and cache, and so on. I wanted this rom; Lineage OS https://forum.xda-developers.com/mate-8/development/6-0-1-cyanogenmod-13-port-t3512985
But everything came up with different errors for different actions I did like this:
"cant mound sd card"
"cant mount inernal storage"
"cant mount data"
"cant format data"
"cant mount system"
"cant mount cache"
etc. etc...
I tried to change file system to EXT3. EXT4, EXT2, FAT, and so on, for Data and System. Nothing worked correctly (but I had still on some Filestystems instead of 0MB like 2700MB). Still not working correct... On TWRP.
Then I tried to update TWRP from 3.0.1 to 3.1 (new one released). Because I saw, more precisely, I heard that an update can fix this mount issues I had.
Said and done, I updated it and instead of 3.1 I had 3.0.2 (idk why but I didnt care). But still theese problems happend.
So then I saw in a Video on youtube (which I cant find anymore) that another recovery like CWM can fix this issues. So I downloaded CWM recovery.img and installed it with TWRP an rebooted to recovery again. And now I´m in a situation, in wich I dont know what to do.
Now the phone tries to start, but no OS installed.
Try to get into Recovery, but no recovery aviable exept eRecovery which is failing with data when trying to restore.
Problem is also that Fastboot and ADB is not working. Installed HiSuite, ADB drivers, Samsung drivers (though could help).
Tried Knife Italian, but no connection to pc..
Tried different cable, no luck.
Tried windows 7, 8.1, 10 Home and now im on Win 10 Pro 64x.
All I can do is to boot into Fastmode, but cant do anything. And when I try to boot the phone normally it stucks on "Your device is booting now..." because no OS...
PLEASE HELP ME GUYS! I REALLY NEED THAT PHONE :crying::crying::crying::crying::crying:
THANK YOU !!! :good:

Hallo,
If your phone is still recognized in fastboot mode, you can try following up my tutorial here » https://forum.xda-developers.com/mate-8/help/how-to-unbrick-l29-al10-stuck-fastboot-t3599775
I was experiencing the same problem. No OS, no recovery, no fastboot flash possibility, only fastboot booting. Keep in mind that you will need 15€ for this method to work but it is the only way to resurrect your device.
PM me if you need further assistance.

djmitza222 said:
Hallo,
If your phone is still recognized in fastboot mode, you can try following up my tutorial here » https://forum.xda-developers.com/mate-8/help/how-to-unbrick-l29-al10-stuck-fastboot-t3599775
I was experiencing the same problem. No OS, no recovery, no fastboot flash possibility, only fastboot booting. Keep in mind that you will need 15€ for this method to work but it is the only way to resurrect your device.
PM me if you need further assistance.
Click to expand...
Click to collapse
Thank you for the reply my friend.
The problem is, that it only boots in to fastbootmode, but any pc wont recognize it. I tried even with Mac...:crying:
Greetings

DC-Phoenix should recognize the fastboot brick state even if the device doesn't show up in Minimal ADB & Fastboot. Try my method and let me know if it works.

Hi guy's.
DC Phoenix save my mate 8 with factory firmware.
I was the same problem like you and search one week a solution and after I decided to pay and try Phoenix and now I write from my mate 8
Before buy 15€ of credit you can download and try to connect your phone on DC Phoenix

does the DC phoenix method take your phone to absolute stock? ie, stock firmware +recovery + Locked + no root?

Yes. You will have the factory firmware (stock) but with unlocked bootloader.

stuck in twrp cant connect to pc

i was following this video and my phone is now stuck in twrp, at this point in the video it resets your phone. privous to this my phone would connect to my computer so i could transfer files now all it does is make the noise on widows that the device is connected but the device doesn't show up on my pc nore does it show up on 3-4 other pc's i've tried to connect to.
if i could get any help with this i'd be VERY appreciative
https://www.youtube.com/watch?v=LD1OlbfHdwE&t=6m01s
edit r
fyi when i did this i had all english options so i didn't randomly hit some 3rd language option nor did hit anything at all

https://forum.xda-developers.com/oneplus-6/how-to/guide-mega-unbrick-guide-hard-bricked-t3796051

Just download The fastboot image and flash it via bootloader option.

Dog479 said:
i was following this video and my phone is now stuck in twrp, at this point in the video it resets your phone. privous to this my phone would connect to my computer so i could transfer files now all it does is make the noise on widows that the device is connected but the device doesn't show up on my pc nore does it show up on 3-4 other pc's i've tried to connect to.
if i could get any help with this i'd be VERY appreciative
https://www.youtube.com/watch?v=LD1OlbfHdwE&t=6m01s
edit r
fyi when i did this i had all english options so i didn't randomly hit some 3rd language option nor did hit anything at all
Click to expand...
Click to collapse
I remember currently MTP does not work on TWRP Onplus6. You have to push files manually. Why are you watching videos is the first place? Videos get easily get outdated.

Dog479 said:
i was following this video and my phone is now stuck in twrp, at this point in the video it resets your phone. privous to this my phone would connect to my computer so i could transfer files now all it does is make the noise on widows that the device is connected but the device doesn't show up on my pc nore does it show up on 3-4 other pc's i've tried to connect to.
if i could get any help with this i'd be VERY appreciative
&t=6m01s
edit r
fyi when i did this i had all english options so i didn't randomly hit some 3rd language option nor did hit anything at all
Click to expand...
Click to collapse
I had same problem also
Sol:
1.After unlocking bootloader log in and place all the files on you internal storage
2. Make sure you have the 5.1.8 boot img because if you flash E.g 5.1.5 boot image on 5.1.8 your wifi wont work.
3. The rest is in the video

BossVeka said:
I had same problem also
Sol:
1.After unlocking bootloader log in and place all the files on you internal storage
2. Make sure you have the 5.1.8 boot img because if you flash E.g 5.1.5 boot image on 5.1.8 your wifi wont work.
3. The rest is in the video
Click to expand...
Click to collapse
this is what my phone is doing i can't connect properly and can't add anything to the internal storage, also i can't post pics but i have a pic of my device man and the drives on my pc httpscolon//ibb.co/m0pznJ i tried volume up and power to get it into the transfer mode but no go, i've nvr bricked a device before this sucks all my other rootings went off without a problem
https://ibb.co/m0pznJ
when i attempt to use the msndownloadtool i get this error software image not exist

Dog479 said:
this is what my phone is doing i can't connect properly and can't add anything to the internal storage, also i can't post pics but i have a pic of my device man and the drives on my pc httpscolon//ibb.co/m0pznJ i tried volume up and power to get it into the transfer mode but no go, i've nvr bricked a device before this sucks all my other rootings went off without a problem
https://ibb.co/m0pznJ
when i attempt to use the msndownloadtool i get this error software image not exist
Click to expand...
Click to collapse
does anyone have alink to the Qualcomm HS-USB QDLOader 9008 drivers?
now its saying this so maybe if i can get the drivers i can fix this thing
https://ibb.co/bE7u4y

well my phone is bricked, it refuses to connect to anything. super awesome. so i am sending it for rma... i've never had a phone do this before , ive also never had a prob like this in years of computing i've lapped and water cooled and peltier cooled numerous pc's. and i get fked by a phone that refuses to connect to an computer after following numerous guides.
this **** is laughable. the phone bricked itself have way through doing anything, watch you azz with this phone.
i guess i''l eat whatever oneplus charges me to get my phone back. fff s i could have bought an iphone now, waiting on that $550 repair feee

Dog479 said:
well my phone is bricked, it refuses to connect to anything. super awesome. so i am sending it for rma... i've never had a phone do this before , ive also never had a prob like this in years of computing i've lapped and water cooled and peltier cooled numerous pc's. and i get fked by a phone that refuses to connect to an computer after following numerous guides.
this **** is laughable. the phone bricked itself have way through doing anything, watch you azz with this phone.
i guess i''l eat whatever oneplus charges me to get my phone back. fff s i could have bought an iphone now, waiting on that $550 repair feee
Click to expand...
Click to collapse
this sucks big time, what was Oneplus' solution?
...I am also stuck with an Android Pie update, where I cannot access my phone on laptop and all buttons don't work no more after trying to root it again.
why don't they make Android updates where your device stays rooted?

Need help! No fastboot!

I was on Crdroid and wanted to get back into Miui since there was weekly miui 12 version now. Downloaded it and flashed it but it would not boot. I remembered on poco i had that i needed to flash latest miui andro 9 before flashing latest miui andro 10 for some reason so i got back into twrp and did it. After reboot it went into some sort of boot loot and i lost any recovery and fastboot. Cant get into edl for that matter also. Anyone has any suggestion?

Can you elaborate a bit more, when you try to boot into fastboot with the button combination, does it work?
Do you get any indications when trying to turn on your phone?

malimukk said:
Can you elaborate a bit more, when you try to boot into fastboot with the button combination, does it work?
Do you get any indications when trying to turn on your phone?
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Click to collapse
Button combination gives me blank screen and revovery gives MI logo and just that until it rebots and stays like that in some loop. I can get into test mode after opening it to try QFill flashing but i forgot about account authorisation thing. I do not have any type of service center in my country that wants to deal with this. Issue is probably due to anti rollback policy in 2s. So i need solution to flash somehow thru qualcomm port but aparently only wth that account that has authorisation.
Thats where i got till now. Spent a whole day also at 4pda trying to find solution but nothing there worked for me

scudteshka said:
Button combination gives me blank screen and revovery gives MI logo and just that until it rebots and stays like that in some loop. I can get into test mode after opening it to try QFill flashing but i forgot about account authorisation thing. I do not have any type of service center in my country that wants to deal with this. Issue is probably due to anti rollback policy in 2s. So i need solution to flash somehow thru qualcomm port but aparently only wth that account that has authorisation.
Thats where i got till now. Spent a whole day also at 4pda trying to find solution but nothing there worked for me
Click to expand...
Click to collapse
Oh that's unfortunate! I think that in this case you will need to find someone with an authorized account that will flash it for you remotely. There have been some people around here offering that service for a small fee but it might be worth paying as that might be the only way to fix it.

Same thing happend to me, first time i tried using custom rom. i dont know what exactly happened. i think its have something common with anti-rollback feature. I sent the divice to OFFICIAL service center.... I told them "use mi flash tool and authorised account to flash fastboot rom in edl" These OFFICIAL trained technicians... ehm idiots... change whole mother board.... atleast they count it as warrasnty repair.... there is one guy on reddit who succesfull unbricked his device via "shady bussines" (there is also contact on reddit page)... some guys offer xiaomi unbrick services via teamviewer. you can give it a try: https://www.reddit.com/r/Xiaomi/comments/ftix9v/shady_services_unbrick_with_mi_authorised_account/ EDIT: its last reply reddit (hope its allowed to post links)
note: you can put yr device in edl mode by pressing powerbutton. im not sure if its pressing or holding. (yr phone need to by connected to pc, then mi flash detect the phone if all drivers are instaled, it should be shown in "windows device manager" as PORT named "qualcomm hs-usb qdloader 9008")
if you dont have authorised acc. this will happen https://imgur.com/a/oJVpKEl so you need someone with authorised account who will unbrick yr phone via teamviewer [Sorry for my bad english]
Ijust dont understand why xiaomi dont allow user flashing in edl mode... or just make harder to brick phone... i had oneplus and i never bricked it. bricking xiaomi is just super easy thank to their stupid anti-rollback and other b****its. i will never use custom rom on xiaomi again. i will dont buy xiaomi again

Did you try the MI Flash app? ...try to fastboot and check if mi flash works
Also try fastboot(combo-buttons only) and see if you can see the phone (cmd -> fastboot devices) ...if you see a device then you are good to go
If you have a fastboot miui rom you can use my guide: https://forum.xda-developers.com/xiaomi-mi-mix-2s/help/weird-behavior-boot-loop-random-t4086703
It's like using MI flash program but doing it manually - if mi flash gives you issues or else
P.S. CMD MUST be with administrator rights of course!

Hi Guys,
got a big problem here today. after installing on orangefox a miui11 stable rom suddenly flashlight went on and it stopped to install it... i was like WTF? so i have go to reboot to the recovery and my mix 2s DIED.
now
1) battery is drained
2) no fastboot (black screen on vol down + power key)
3) no recovery (black screen on vol up + power key)
4) bootloop on miui logo
any idea?

Some help and Guidance please with Find X2 Pro

Hi all, thanks for stopping by...bear with on this one ill try and give as much detail as I can.
ok so, my son dropped the android 11 beta into the phone and ran the install from the power volume down menu, well we at least think it was the beta, and here now are the problems I'm trying to fix for him.
phone in a boot loop
vol down and power recovery gives
kindly reminder
system error, after select language please select online update ( keep data ) to recovery system, thanks!
this does not work - says cant find wifi , I'm then left with turn off and install from storage ,reboot and 2 chineese options that I assume are the same.
when I plug the device into windows 10 pc ( also tried a chromebook ) the pc acknowledges the phone but does not spring up as a storage device so I cant pop the old OS on it to my frustration.
it shows up in device manager for about 40 seconds while booting then disconnects and when it shows ALL its drivers are flagged as problematic , I get
DPL Data
OPPO Find X2 Pro
OPPO Find X2 Pro
OPPO Find X2 Pro
QDSS DATA
QDSS DATA
RmNet
all the above appear in the device manager as issues. when I try to update driver it simply says it cannot find drivers for your device, tried to uninstall etc but just comes back as a error flag in devices.
any ideas on how to get the colourOS back on it at all please? willing to pay for a remote in and fix if such a thing exists too. I am guessing USB debugging etc isn't enabled and that's why the device isn't popping up...not sure if I can change this not via the phone but pc?
thanks all
Dan

I learned a lesson that find X2 pro is like Huawei
Can't play with roms like OnePlus.
I would recommend to send to service center