Sending boot...Error writing to serial port - GSM-Forum

irfanakareem · 03-11-2021, 08:12

SigmaKey 2.40.03 HiSi: Remove FRP / Huawei ID
HUAWEI USB COM 1.0 (COM32), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 06-11-15, USB\VID_12D1&PID_3609&REV_0100
HiSilicon: Kirin 820
Sending boot...Error writing to serial port

Handset Dead after Software testpoint On.../Off

irfanakareem · 03-11-2021, 09:20

Quote:

Originally Posted by irfanakareem

SigmaKey 2.40.03 HiSi: Remove FRP / Huawei ID
HUAWEI USB COM 1.0 (COM32), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 06-11-15, USB\VID_12D1&PID_3609&REV_0100
HiSilicon: Kirin 820
Sending boot...Error writing to serial port

Handset Dead after Software testpoint On.../Off

SigmaKey 2.40.03 HiSi: Software testpoint On.../Off
DBAdapter Reserved Interface (COM175), Provider: HUAWEI Technologies CO.,LTD, Driver ver.: 1.0.26.0, Date: 18-05-16, USB\Vid_12D1&Subclass_13&Prot_23
Using extended heuristic method...
Hardware IMEI: 020304050607080
Flash file D:\Huawei\Cindy-N29B.1.192(C185E6R4P1)_Firmware_EMUI10.1.1_05016TW V\Software\dload\UPDATE.APP
Enabling diagnostic port...Done
We strictly recommend performing "Enable Downgrade" on "Flash" tab, as the first service operation on this device!

Gsmserver · 03-11-2021, 10:07

Is the battery fully charged? Did you try to perform the operation once again?

irfanakareem · 03-11-2021, 10:35

Quote:

Originally Posted by Gsmserver

Is the battery fully charged? Did you try to perform the operation once again?

yes i tried battery is fully charged

irfanakareem · 03-11-2021, 11:08

Quote:

Originally Posted by irfanakareem

yes i tried battery is fully charged

handset is dead now need help

Gsmserver · 03-11-2021, 12:04

Please make a photo of phone's information (it's located on the phone's board, or on the box).
Also you may try to use other bootloaders, like 810, 820, 985 etc.

irfanakareem · 03-11-2021, 13:29

i tried different boot same error almost all

Gsmserver · 03-11-2021, 13:31

Is the phone's battery connected to the board during the service operation?
What is the phone's exact model?

irfanakareem · 03-11-2021, 13:35

yes battery connected

CDY-NX9B

GSM_Support · 03-11-2021, 14:15

@ irfanakareem,

Please upload firmware you are trying to use for the software testpoint operation and send it to me.
Current case will be deeply investigated.

Best Regards
GSMServer team

irfanakareem · 03-11-2021, 15:31

https://drive.google.com/file/d/1ZMj...ew?usp=sharing

GSM_Support · 03-11-2021, 15:54

@ irfanakareem,

It looks like that your device runs on some specific modification of Kirin 820 chip.
Current case will be deeply investigated.

Best Regards
GSMServer team

irfanakareem · 03-14-2021, 08:12

my handset is dead any update on this situation

hw fix all · 03-14-2021, 21:53

phone dead only USB COM 1?

wadieyou · 03-15-2021, 21:34

try to make load fastboot then flash the phone in fastboot mode

03-11-2021, 08:12	#1 (permalink)
irfanakareem Freak Poster Join Date: Sep 2016 Location: Dubai Posts: 161 Member: 2630333 Status: Offline Thanks Meter: 77	Sending boot...Error writing to serial port SigmaKey 2.40.03 HiSi: Remove FRP / Huawei ID HUAWEI USB COM 1.0 (COM32), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 06-11-15, USB\VID_12D1&PID_3609&REV_0100 HiSilicon: Kirin 820 Sending boot...Error writing to serial port Handset Dead after Software testpoint On.../Off

03-11-2021, 15:54	#12 (permalink)
GSM_Support Product Supporter Join Date: Feb 2005 Location: GSMserver Team Posts: 36,980 Member: 121052 Status: Offline Sonork: 100.107126 Thanks Meter: 80,766	@ irfanakareem, It looks like that your device runs on some specific modification of Kirin 820 chip. Current case will be deeply investigated. Best Regards GSMServer team Last edited by Gsmserver; 03-11-2021 at 16:24.

03-14-2021, 08:12	#13 (permalink)
irfanakareem Freak Poster Join Date: Sep 2016 Location: Dubai Posts: 161 Member: 2630333 Status: Offline Thanks Meter: 77	ANY update my handset is dead any update on this situation

03-11-2021, 10:07	#3 (permalink)
Gsmserver Product Supporter Join Date: Feb 2003 Location: gsmserver Posts: 9,148 Member: 21077 Status: Online Thanks Meter: 116,340	Is the battery fully charged? Did you try to perform the operation once again?

03-11-2021, 12:04	#6 (permalink)
Gsmserver Product Supporter Join Date: Feb 2003 Location: gsmserver Posts: 9,148 Member: 21077 Status: Online Thanks Meter: 116,340	Please make a photo of phone's information (it's located on the phone's board, or on the box). Also you may try to use other bootloaders, like 810, 820, 985 etc.

03-11-2021, 13:29	#7 (permalink)
irfanakareem Freak Poster Join Date: Sep 2016 Location: Dubai Posts: 161 Member: 2630333 Status: Offline Thanks Meter: 77	i tried different boot same error almost all

03-11-2021, 13:31	#8 (permalink)
Gsmserver Product Supporter Join Date: Feb 2003 Location: gsmserver Posts: 9,148 Member: 21077 Status: Online Thanks Meter: 116,340	Is the phone's battery connected to the board during the service operation? What is the phone's exact model?

03-11-2021, 13:35	#9 (permalink)
irfanakareem Freak Poster Join Date: Sep 2016 Location: Dubai Posts: 161 Member: 2630333 Status: Offline Thanks Meter: 77	yes battery connected CDY-NX9B

03-11-2021, 14:15	#10 (permalink)
GSM_Support Product Supporter Join Date: Feb 2005 Location: GSMserver Team Posts: 36,980 Member: 121052 Status: Offline Sonork: 100.107126 Thanks Meter: 80,766	@ irfanakareem, Please upload firmware you are trying to use for the software testpoint operation and send it to me. Current case will be deeply investigated. Best Regards GSMServer team

03-11-2021, 15:31	#11 (permalink)
irfanakareem Freak Poster Join Date: Sep 2016 Location: Dubai Posts: 161 Member: 2630333 Status: Offline Thanks Meter: 77	https://drive.google.com/file/d/1ZMj...ew?usp=sharing

03-14-2021, 21:53	#14 (permalink)
hw fix all Major Poster Join Date: Mar 2021 Location: phnom penh,cambodia Age: 30 Posts: 43 Member: 2982963 Status: Offline Thanks Meter: 7	phone dead only USB COM 1?

03-15-2021, 21:34	#15 (permalink)
wadieyou No Life Poster Join Date: Jan 2010 Location: Rabat Posts: 657 Member: 1209155 Status: Offline Thanks Meter: 110	try to make load fastboot then flash the phone in fastboot mode