yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S General] Akopps:
I don't think the Tab S4 is worth its MSRP price if all you will do with it is media consumption. They clearly intend it to be some kind of a business-oriented 2-in-1 productivity and media device. I'd look at the new more affordable 2018 Galaxy Tab A 10.5, but if Samsung prices it like an iPad, I'd rather buy something like Amazon Fire HD 10 (the US price is just 149USD)

---------- Post added at 08:22 AM ---------- Previous post was at 08:14 AM ----------

And recall the worst thing, you buy a +600USD device that will receive only two years of updates (at best), compared to 4-5 years typical of Apple tablets. No wonder Apple owns the tablet market. Apple is perceived as the premium product, and it's going to be hard to convince average consumers to spend so much cash on Samsung tablets at the time when they lose on specs dollar for dollar. It's great that Samsung continues developing Android tablets, but don't know what Samsung is thinking.
[Galaxy Tab S General] Tinderbox (UK):
Apple biggest turn-off in tablets for me is the 4:3 screen ratio, never, never, nerver going to buy that, Movies/video`s are my number 1 use.
[Galaxy Tab S General] pacc:
100% agree.

I bought the Tab S3 a long time, and until today my only 100% regret is the 4:3 ratio, which is an epic fail.

Black bars everywhere on 16:9, 21:9 video, even if you stream onto your 16:9 TV you still get black bars...

In all honesty, I use my tab S1 most of the time (with latest stock marshmallow), and the tab S3 only when the battery of the S1 runs out.
[Galaxy Tab S General] parshakov:
A question to those who got a chance to compare S1 vs S4: does the S1 display look sharper? The S1 display uses an RGB supixel layout vs PenTile in the S4 display, so it should look sharper.. Also Netflix is capped at 720p on the S4 vs 1080p on the S1, unless you use Netfix v5.0 or older.

Edit: fortunately, Samsung still uses the "RGB stripe" subpixel arrangement in their tablet displays. My bad, should have searched the forum before posting.. https://xdaforums.com/galaxy-tab-s4/help/he-tab-s4-pentile-matrix-display-t3827112/page2
[LG G6 Questions and Answers] samsung striker:
My LG G6 heats up so fast. I was just watching videos on YouTube and downloading apps from playstore and my hands were burning. The phone gets stupid hot for no reason. Any fixes?
[LG G6 Questions and Answers] fegitoli:
Have you tried clearing the Youtube cache? It tends to help for me.

Your phone is supposed to warm up a little while downloading things. That's completely normal. Of all the phones I've owned, from Android to iPhone, they've all gotten warm while downloading things.
[LG G6 Questions and Answers] samsung striker:
It randomly gets very warm. The metal on the sides, top and back. My hands become warm to the point that its uncomfortable to hold the device.
[LG G6 Questions and Answers] fegitoli:
It could be a hardware problem. If nothing helps, then contact customer service. It probably won't get you anywhere given LG's incompetence (based off others' experiences), but hey. Worth a shot.
[LG G6 Questions and Answers] samsung striker:
Yeah I'm gonna refund and buy another one. See how it goes.
[Android Apps and Games] brothersun:
Hi, I just finished my new Android game. It would be great to hear some feedback :)

https://play.google.com/store/apps/details?id=com.pianotiles.battle.mode.free
[Android Apps and Games] Vidhya18:
The game has good visuals! :)
[Android Apps and Games] meladeeindeep:
cool game for girls!! nice one! will try it and get back for the comments.
[Desire Q&A, Help & Troubleshooting] volcomkid2:
i would like some insight on why or if its even possible to root my htc desire 550. i have bootloader unlocked but S-on is active. iv tried using a custom recovery, recovery gets flashed but cant physically use adb to get into the recovery itself. I have tried kingo root and all those other rooting software but failed. i believe that since S-on is active. it wont send the roms or recoveries into my phone. Please help. this model is very unspoken of on terms of rooting purposes
[Android Q&A, Help & Troubleshooting] Teddy Lo:
Hi , try this from my post :)

1. Disable or remove your Antivirus (because sometimes virus can block instaling drivers , ports or running flash tool)

2. Uninstall all the previous drivers you used for flashing or unbrick use free tool called USBDeview

for 32 bit users:

https://www.nirsoft.net/utils/usbdeview.zip

for 64 bit users:

https://www.nirsoft.net/utils/usbdeview-x64.zip

3. Put your windows in Test mode

To put your Windows in test mode just Run As Administrator Command Prompt and insert one of the following command:

bcdedit -set testsigning on ( to enable test mode)

http://s000.tinyupload.com/index.php...66266232947643

bcdedit -set testsigning off ( to disable test mode)

http://s000.tinyupload.com/index.php...26094979151761

Or Disable driver signature

for Windows 7

https://www.youtube.com/watch?v=6gYhHD622AA

for Windows 10 users:

https://www.youtube.com/watch?v=71YAIw7_-kg

After that reboot your PC .

4. Uninstall all flash program from your pc like MiFlash , QPST , Qloader ...

Use Revo Uninstaller for advanced uninstaling that clean leftover files and registry which is stored inside your Windows registry.

https://www.revouninstaller.com/revo..._download.html

After that reboot your PC .

5. Install Microsoft .NET Framework 4 download from here: (if you already have instaled skip this)

https://www.microsoft.com/en-us/down....aspx?id=17851

6. Install Minimal ADB & Fastboot 1.4.2 command tool download from here

(while you start installing tool check to be in desktop is easy )

https://androidfilehost.com/?fid=745425885120698566

in order to install run ADB & Fastboot 1.4.2.exe with Administrator and just write y and hit enter for all .

Now follow this tutorial for unbrick your device : ) .

It must to work :)

http://lgk20.com/lg-k20-plus-mp260-stock-rom-download-firmware-update-tutorial/

Don't forget to run flash tool with Administrator.

Good Luck and Never give UP :)
[Android Q&A, Help & Troubleshooting] Izaiah Coronado:
Thank you for these tips! but unfortunately, i cant follow the tutorial because im unable to access download mode or any mode for that matter. my screen is black and isnt recognized by the computer as a normal LG phone anymore...

im trying to find a solution that does not involve download mode, fastboot, or anything involving the phone displaying anything if that makes sense...
[Android Q&A, Help & Troubleshooting] Teddy Lo:
You should try to let your battery to dry out and then hold Vol - button and plug usb ,just keep holding for few minutes to see if your pc is detecting your device if not try to replace the battery if that also doesn't help then probably your emmc chip is dead or something other.
[Android Q&A, Help & Troubleshooting] Izaiah Coronado:
i truly appreciate your helpfulness:), but my main focus is trying to fix the Sahara error i keep receiving, and/or if im doing something wrong thats causing it:confused:.
[Android Q&A, Help & Troubleshooting] Teddy Lo:
Is your PC detecting your device at all ? and like which one ? can you post some photos ?

Also what you can try is to extract that stock firmware on another location like D:/ Firmware/(your extracted firmware) , run Qfil with Administrator , load extracted firmware from D:/Firmware/ in Qfil and make sure that you have 9008 open port .
[Android Q&A, Help & Troubleshooting] Izaiah Coronado:
its seen only as Qualcomm HS-USB QDLoader 9008 (under ports)and nothing else. i apologize but i cant seem to put up my picture...

i also just tried your suggestion and it didn't work sadly. im having horrible luck with these things lol.
[Android Q&A, Help & Troubleshooting] Teddy Lo:
When your PC is detecting your device as Qualcomm HS-USB QDLoader 9008 is good news : ) , it looks like path from firmware which you inserted inside Qfil tool are wrong or firmware at all .

Try again if you are able to put your device in fastboot mode:

Open Minimal ADB & Fastboot , in my case C:\Program Files (x86)\Minimal ADB and Fastboot right click on cmd-here.exe and Run as Administrator .

1. Now take out the battery , and insert again .

2. Next hold just vol - and plug usb cable don't release yet wait few seconds and see if your device is detected like that then release Vol - .

3. Write inside adb & fastboot terminal :

- fastboot device and press Enter

(see if is show up like some numbers or what )

if not try

- adb devices and press Enter

(if your device is available there just write adb reboot bootloader

-write again fastboot devices , and if everything is fine you should see your device

now from stock firmware extract recovery.img , also if you have single system.img , boot.img extract that also to in my case C:\Program Files (x86)\Minimal ADB and Fastboot and write for each one:

fastboot erase cache and press Enter

fastboot erase system and press Enter

fastboot flash recovery recovery.img and press enter

fastboot flash boot boot.img and press enter

fastboot flash system system.img and press enter

If that doesn't help you , try to flash this firmware with LG UP

Example how to flash :

https://www.youtube.com/watch?v=NIHTx6a_kDI

Stock firmware:

https://mega.nz/#!ymZQHI5S!F3x1I0qM_iXNEg9WnqLINkRATUvlBWigmnzfMD5pUZI

If doesn't help you is better to replace new motherboard and save your time .
[Android Q&A, Help & Troubleshooting] Izaiah Coronado:
so i was poking around and found out that the Firehose file i needed is like super specific to the device im using it on (a signed Firehose_emmc). so finding that ever so specific Firehose file could very much possibly be the fix. (i just dont know how to find and obtain it:confused:)

im also looking into the new motherboard because...you know...

would it matter the carrier? like if my phone is metroPCS and the new mother board is T-mobile?
[Android Q&A, Help & Troubleshooting] Horyzon:
Same Issue here.

Validating Application Configuration

Load APP Configuration

COM:5

PBLDOWNLOADPROTOCOL:0

PROGRAMMER:True

PROGRAMMER:D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0\prog_emmc_firehose_8976_ddr.mbn

RESETSAHARASTATEEMACHINE:False

SEARCHPATH:D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0

RAWPROGRAM:

rawprogram0.xml

PATCH:

patch0.xml

ACKRAWDATAEVERYNUMPACKETS:False

ACKRAWDATAEVERYNUMPACKETS:100

MAXPAYLOADSIZETOTARGETINBYTES:False

MAXPAYLOADSIZETOTARGETINBYTES:49152

DEVICETYPE:eMMC

PLATFORM:8x26

VALIDATIONMODE:0

RESETAFTERDOWNLOAD:False

MAXDIGESTTABLESIZE:8192

SWITCHTOFIREHOSETIMEOUT:30

RESETTIMEOUT:200

RESETDELAYTIME:2

FLATBUILDPATH:C:\

FLATBUILDFORCEOVERRIDE:True

QCNPATH:C:\Temp\00000000.qcn

QCNAUTOBACKUPRESTORE:False

SPCCODE:000000

ENABLEMULTISIM:False

AUTOPRESERVEPARTITIONS:False

PARTITIONPRESERVEMODE:0

PRESERVEDPARTITIONS:0

PRESERVEDPARTITIONS:

ERASEALL:False

Load ARG Configuration

Validating Download Configuration

Image Search Path: D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0

RAWPROGRAM file path: D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0\rawprogram0.xml

PATCH file path:D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0\patch0.xml

Programmer Path:D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0\prog_emmc_firehose_8976_ddr.mbn

Process Index:0

Start Download

Program Path:D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0\prog_emmc_firehose_8976_ddr.mbn

***** Working Folder:C:\Users\Administrator\AppData\Roaming\Qualcomm\QFIL\COMPORT_5

Binary build date: Oct 31 2016 @ 22:51:05

QSAHARASERVER CALLED LIKE THIS: 'C:\Program Files (x86)\Qualcomm\QPST\bin\QSaharaServer.ex'Current working dir: C:\Users\Administrator\AppData\Roaming\Qualcomm\QFIL\COMPORT_5

Sahara mappings:

2: amss.mbn

6: apps.mbn

8: dsp1.mbn

10: dbl.mbn

11: osbl.mbn

12: dsp2.mbn

16: efs1.mbn

17: efs2.mbn

20: efs3.mbn

21: sbl1.mbn

22: sbl2.mbn

23: rpm.mbn

25: tz.mbn

28: dsp3.mbn

29: acdb.mbn

30: wdt.mbn

31: mba.mbn

13: D:\@SOFTWARES\19. Android&IOS\Firmware\COOLPAD 6\VCR-A0\prog_emmc_firehose_8976_ddr.mbn

22:17:50: ERROR: function: sahara_rx_data:237 Unable to read packet header. Only read 0 bytes.

22:17:50: ERROR: function: sahara_main:924 Sahara protocol error

22:17:50: ERROR: function: main:303 Uploading Image using Sahara protocol failed

Download Fail:Sahara Fail:QSaharaServer Fail:Process fail

Finish Download
[Android Q&A, Help & Troubleshooting] fish555:
I have a problem

I,ve tried QFIL QPST and recieved

/*invalid image type recieved*/

is_ack_succesfull : 1031 SAHARA_NAK_INVALID_IMAGE_TYPE

sahara protocol error

uploading image using sahara protocol failed

Before that

My emmc card was already formatted to fat32
[Android Q&A, Help & Troubleshooting] Anthony Finix:
same issue here

having this same issue tried older version, short paths and lots of retries
[Android Q&A, Help & Troubleshooting] koki4ka:
BQ Aquarius X5 Plus Sahara Fail

Hi! I have this Fail on QFIL whith BQ Aquarius X5 Plus :(

I see my phone on Device Manager like: Qualcomm HS-USB QDOWNLOADER 9008 (COM3)

Pls someone...

Sahara Connecting ...

Sahara Version:0

Start Sending Programmer

Download Fail:System.Exception: Unable to download Flash Programmer using Sahara Protocol

at QC.QMSLPhone.Phone.QPHONEMS_SaharaArmPrgDownload(String sFileName)

at QC.SwDownloadDLL.SwDownload.QPHONEMSSaharaDownloadArmPrg(UInt64& version, String armPrgPath)

Download Fail:Sahara FailSahara Fail
[Android Q&A, Help & Troubleshooting] ben_deez:
Fellow FOOL am I

I also have a K20... and a Stylo 4 with the same problem... (me) Flashed different variant of firmware (KDZ) and get QUALCOMM HS-USB QDLoader 9008

following this thread
[Android Q&A, Help & Troubleshooting] handasan10:
For those still having ERROR: function: sahara_rx_data:237 Unable to read packet header. Only read 0 bytes.

Please use older Qfil version, I flash successfully with version 2.0.0.0 after latest version giving above error..
[Android Q&A, Help & Troubleshooting] JoshuaX12:
Tried that thing but no success.
[Android Q&A, Help & Troubleshooting] Pomonabill220:
Possible problem with Qfil and network

Depending on how the Qualacom (sp) driver was installed, if you remember, it asked about a network connection type.

I found this problem while searching TONS of possible solutions, and it might work for you as I was getting the same errors with QFIL.

DISCONNECT FROM YOUR NETWORK. That means ALL interfaces, like wired ethernet, and wireless. ALL OF THEM.

Then try running the flash with QFIL.
[Android Q&A, Help & Troubleshooting] bapakerwe:
hi guys, sorry if this post or my comment is out of date, been awhile for too long :)

simple solution for Sahara Fail is just as simple as rename your image folder with alphanumeric characters without space and put it in your root directory (e.g. D drive) because Sahara can't recognize your folder if it use space in it's name
[Android Q&A, Help & Troubleshooting] cassiji:
How to do that?
[Android Q&A, Help & Troubleshooting] bapakerwe:
you don't know how to "rename a folder" ?
[Android Q&A, Help & Troubleshooting] cassiji:
The folder “firmware”, I already transferred it to my C drive and same thing happens “sahare fail sahara fail”

Lenovo A6000 - my device
[Android Q&A, Help & Troubleshooting] bapakerwe:
have you rename it with simple name without space? can you upload a screenshot of it? maybe we can figure it out what's the exact problem
[Android Q&A, Help & Troubleshooting] cassiji:
Sir, my problem is already solve yay! My brother just used the lenovo software for flashing then done. Thaank you for your replies :o
[Android Q&A, Help & Troubleshooting] bapakerwe:
good for you
[Android Q&A, Help & Troubleshooting] CheetahBear:
Im still having a hell of trouble, iv tried putting the 8675W00 in my root, changed the names to the .mbn file to "progemmcfirehose8936" and the build file to "rawprogram0" and path file to "patch0" but im still getting an error.
[Android Q&A, Help & Troubleshooting] bapakerwe:
afaik, you can't rename those files, only the folder. are you sure it is the correct firmware files for your device?
[Android Q&A, Help & Troubleshooting] cassiji:
What is your device? Try, before actually plugging in the phone, hold down the volume up button or both or volume down or power button. Trial and error method :D
[Android Q&A, Help & Troubleshooting] jm691:
I have tried everything on a Lenovo A6000 and no matter which tool I use I get the sahara error. Qfil gives fail:sahara and Lenovo downloader gets stuck on step Sahara. The phone is recongized when I connect it to Qfil holding VOL UP and VOL DOWN but I cannot figure out why it keeps getting this error. I have now spent over 10 hours trying to flash this Lenovo A6000 with its stock ROM with no joy and people here absolutely refuse to reply or help me at all.

Should I throw the phone in the trash and forget about it? Because at this point I have tried EVERYTHING and nothing works.....
[Android Q&A, Help & Troubleshooting] bapakerwe:
"people here absolutely refuse to reply or help me at all"?

well, we are not a customer service who get paid for answering, I'm afraid. but to some of your peace of mind, could you kindly inform us what's the error codes, and have you read all previous replies that might solve your problem?
[Android Q&A, Help & Troubleshooting] cassiji:
Try just the volume UP. :)
[Android Q&A, Help & Troubleshooting] jm691:
OK good then why dont you guys just shut down the forum then? Why is it even here in the first place when guys like you leave rude comments and remarks?

You know I have personally contributed money to a couple of the developers here for their work. I didn't know it was a BIG problem to ask for help. But thanks to your reply....I understand that I shouldn't and it was a big mistake.

---------- Post added at 04:26 PM ---------- Previous post was at 04:25 PM ----------

Thanks for the reply. I have tried everything and nothing works.
[Android Q&A, Help & Troubleshooting] bapakerwe:
lol, rude comments? I was asking a question politely, kiddo. what was the error code?

and about shutting down this forum is not ours to decide. I don't know how much you spent for those developers you mentioned, but they're not ALL the people here, they're just a few among hundreds others.

again, I'm asking, politely, what was the error code? and kindly tell us every method you did for solving your problem.
[Android Q&A, Help & Troubleshooting] buyang18:
please help me im done doing it, but the last part say Download Fail:System.Exception: Failed to Switch to Emergency Download mode
[Android Q&A, Help & Troubleshooting] bapakerwe:
I assumed that there's the problem of communication between your PC and your phone. maybe the port or the cable. try to change cable, driver, or check your device port.
[Android Q&A, Help & Troubleshooting] tomazf:
hello,

i have the same problem.. just bought Lenovo Z6 lite and tryed to flash something new due to gps not fixying, tho phone showes similar simptoms as previous desciberd..

Qualcom HS-USB QDLoader 9008 (COM5) and dose not boot, just QFIL recognizes it and a lot of Sahara.

error description below. please HELP.

ERROR: function: sahara_rx_data:237 Unable to read packet header. Only read 0 bytes.

ERROR: funtion: sahara_mani:924 Sahara protocol error

ERROR: function: main:303 Uploading image Sahara protocol faliled

Download Fail: Sahara Fail: QSaharaServer Fail: Process Fail

Finish download
[Android Q&A, Help & Troubleshooting] radicaluser:
The truth is . . .

This error occurred because your bootloader is locked , YOU MUST ENTER 9008 MODE WITH TEST POINT WAY to bypass this lock. entering eld mode with buttons and fastboot is only for phones with unlocked bootloader.
[Android Q&A, Help & Troubleshooting] benjieb:
Hi all,

I had the same sahara fail problem.

Fixed it by goind to developper options and allow Unlock bootloader ! TRY

It does not mean you actually unlock it, but I guess it allows QFIL to do its thing. All tutorials about flashing with QFIL don't mention it!

Good luck
[Android Q&A, Help & Troubleshooting] ramesh101:
Validating Application Configuration

Load APP Configuration

COM:4

PBLDOWNLOADPROTOCOL:0

PROGRAMMER:True

PROGRAMMER:F:\android\K33_S150_161114_ROW_QPST\SW\prog_emmc_firehose_8937_ddr.mbn

SEARCHPATH:F:\android\K33_S150_161114_ROW_QPST\SW

RAWPROGRAM:

rawprogram0.xml

PATCH:

patch0.xml

ACKRAWDATAEVERYNUMPACKETS:False

ACKRAWDATAEVERYNUMPACKETS:100

MAXPAYLOADSIZETOTARGETINBYTES:False

MAXPAYLOADSIZETOTARGETINBYTES:49152

DEVICETYPE:UFS

PLATFORM:8x26

VALIDATIONMODE:0

RESETAFTERDOWNLOAD:False

MAXDIGESTTABLESIZE:8192

SWITCHTOFIREHOSETIMEOUT:30

RESETTIMEOUT:200

RESETDELAYTIME:2

FLATBUILDPATH:F:\android\K33_S150_161114_ROW_QPST\SW

FLATBUILDFORCEOVERRIDE:True

QCNPATH:C:\Temp\00000000.qcn

QCNAUTOBACKUPRESTORE:False

SPCCODE:000000

ENABLEMULTISIM:False

Load ARG Configuration

Validating Download Configuration

Image Search Path: F:\android\K33_S150_161114_ROW_QPST\SW

RAWPROGRAM file path: F:\android\K33_S150_161114_ROW_QPST\SW\rawprogram0.xml

PATCH file path:F:\android\K33_S150_161114_ROW_QPST\SW\patch0.xml

Programmer Path:F:\android\K33_S150_161114_ROW_QPST\SW\prog_emmc_firehose_8937_ddr.mbn

Flat Build Path:F:\android\K33_S150_161114_ROW_QPST\SW

Process Index:0

Image Search Path: F:\android\K33_S150_161114_ROW_QPST\SW

RAWPROGRAM file path: F:\android\K33_S150_161114_ROW_QPST\SW\rawprogram0.xml

PATCH file path:F:\android\K33_S150_161114_ROW_QPST\SW\patch0.xml

Start Download

Program Path:F:\android\K33_S150_161114_ROW_QPST\SW\prog_emmc_firehose_8937_ddr.mbn

Binary build date: May 13 2015 @ 14:41:37

QSAHARASERVER CALLED LIKE THIS: 'C:\Program Files\Qualcomm\QPST\bin\QSaharaServer.exe -p \\.\COM4 -s 13:F:\android\K33_S150_161114_ROW_QPST\SW\prog_emmc_firehose_8937_ddr.mbn 'Current working dir: C:\Users\achue\AppData\Roaming\Qualcomm\QFIL

Sahara mappings:

2: amss.mbn

6: apps.mbn

8: dsp1.mbn

10: dbl.mbn

11: osbl.mbn

12: dsp2.mbn

16: efs1.mbn

17: efs2.mbn

20: efs3.mbn

21: sbl1.mbn

22: sbl2.mbn

23: rpm.mbn

25: tz.mbn

28: dsp3.mbn

29: acdb.mbn

30: wdt.mbn

31: mba.mbn

13: F:\android\K33_S150_161114_ROW_QPST\SW\prog_emmc_firehose_8937_ddr.mbn

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: port_connect:100 Failed to open com port handle

08:44:53: ERROR: function: main:259 Could not connect to \\.\COM4

Download Fail:Sahara Fail:QSaharaServer Fail:Process fail

Finish Download

this shows up what to do@ramesh
[Android Q&A, Help & Troubleshooting] prasanth070:
I got the same Sahara error first(protocol fail error), but when I uninstall old qulacom driver and installed the one which came with QFLI, it worked and after flashing my phone is working.

com error maybe resolved by rebooting phone and starting in download mode( press vol+ and vol- and connect usb cable).

Before trying to flash also check for qulcom com port in device manager to ensure phone is connected and is in download mode.

bricked phones maybe unlocked by fastboot

1. reboot to boot loader using option in bios menu (vol+ and power on boot)

2. connect usb

3. open a terminal from folder where fastboot is installed or navigate to directory

4. run "fastboot devices" # to check if your device is connected

5. run "fastboot flashing unlock" or "fastboot oem unlock" for old devices. #to unlock bootloder

6. run "fastboot reboot" #to reboot phone

then try using QFLI again

Best of luck.::D