Lenovo yoga yt2-830lc - GSM-Forum

iArkAt8 · 08-22-2018, 01:33

HI

lenovo yoga yt2-830lc dead by wrrong firmware and coud not detect any driver by pc.
i created 3 type of dump from alive board.
1: read by vendor xml file, Vendor Intel(GPT)
2: read emmc Rom1-1gb Rom2-4mb Rom3-4mb. Maybe wrong
3: read full dump by another soft
at this time i dont have this alive board to create Right Dump

while write by vendor from xml Error: First create a GP1 partition
while write by vendor from image (readed full dump by another soft):
Section GP1 does not exist on eMMC !!!

after write emmc Rom1,2,3 write complete but still dead

how to create GP1 partition or what is the size of GP1 partition?
after created GP1 partition cant write by vendor ,emmc size dont match with vendor file
after create GP1 partition and coud not repaire , i update emmc firmware and continued to repaire

log:

Running:SAMSUNG: eMMC firmware update...
Init OK...
EMMC NAME: AWMB3R
EMMC Part Number: KLMAG2WEMB-B031
Auto FW file for IC: C:\Program Files\Z3X\EASYJTAG\eMMC Firmware\KLMAG2WEMB-B031.bin
Z3X EasyJtag Software ver. 3.0.0.0

Skip loading eMMC Addon Firmware
Box S/N: 19FFE00D100EFD04, ,FW Ver.: 01.63
CMD Pullup Level:1711 mV
CMD Active Level:1794 mV
Box IO Level:1800 mV
CLK Rate:14000 kHz
Using firmware file : C:\Program Files\Z3X\EASYJTAG\eMMC Firmware\KLMAG2WEMB-B031.bin
Firmware EP Offset:00040000
Update Firmware ID Hash:3DBC084022F83292078D351C06C70E3E
Setup firmware update mode, wait 2..30 sec...
Success!
Sending eMMC firmware...
Success!
Flashing eMMC firmware...
Success!
Repairing eMMC CID...
Now Reconnect all eMMC Lines [POWER, CMD, CLK, DAT0]!
Do it until progress bar is moving (20 sec timeout)!
Success!
eMMC firmware is updated now!
Please reconnect all eMMC lines before next operation!
Please don't forget to repair extCSD from backup!
Please don't forget to configure BOOT sizes!

Setting frequence to 21 Mhz
CMD Pullup Level: 1711 mV
CMD Active Level: 1794 mV
EMMC Device Information :
EMMC CID: 15010041574D423352003D424C2131C8
EMMC CSD: D02701320F5903FFF6DBFFEF92404008
EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 3D424C21 , rev. 0x00
EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 3/2014
EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000)
EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000)
EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000)
EMMC Permanent Write Protection: No
EMMC Temporary Write Protection: No
Extended CSD Information :
Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01)
Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot
Boot Bus Config: 0x00 , width 1bit
H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled
Supported partition features [PARTITIONING_SUPPORT]: 0x07
Device supports partitioning features
Device can have enhanced technological features in partitions and user data area
Device can have extended partitions attribute
Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00
Backup saved: AWMB3R_3D424C21_20180822_042548.extcsd
EMMC Init completed.

Opening file: AWMB3R_rawprogram0.xml

Error: First create a GP1 partition

Setting frequence to 21 Mhz
CMD Pullup Level: 1711 mV
CMD Active Level: 1794 mV
EMMC Device Information :
EMMC CID: 15010041574D423352003D424C2131C8
EMMC CSD: D02701320F5903FFF6DBFFEF92404008
EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 3D424C21 , rev. 0x00
EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 3/2014
EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000)
EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000)
EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000)
EMMC Permanent Write Protection: No
EMMC Temporary Write Protection: No
Extended CSD Information :
Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01)
Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot
Boot Bus Config: 0x00 , width 1bit
H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled
Supported partition features [PARTITIONING_SUPPORT]: 0x07
Device supports partitioning features
Device can have enhanced technological features in partitions and user data area
Device can have extended partitions attribute
Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00
Backup saved: AWMB3R_3D424C21_20180822_042738.extcsd
EMMC Init completed.

Opening file: Samsung eMMC AWMB3R_05_08_2018_15_06_16.bin

Analyzing Image: Samsung eMMC AWMB3R_05_08_2018_15_06_16.bin

Vendor: Intel
Searching GPT ...
GPT header is found and is valid

GPT header successfully parsed
Section GP1 does not exist on eMMC !!!

The size of the last section has been updated

layder · 08-22-2018, 08:17

I write some video (now without subtitles)
https://www.youtube.com/watch?v=wJNvxMSdocM

It may be help you

You backup you can write by vendor -Intel

iArkAt8 · 08-22-2018, 21:44

thanks for replay

problem here, readed by vendor and find partition table from alive YT2 bootloader_gp1.bin have 0b size!!!
see picture please http://tinypic.com/r/259y2wl/9

layder · 08-23-2018, 09:14

Quote:

Originally Posted by iArkAt8

thanks for replay

problem here, readed by vendor and find partition table from alive YT2 bootloader_gp1.bin have 0b size!!!

Post read log, please. Originally phone without GP1?
Deselect gp1 from write

iArkAt8 · 03-06-2019, 07:20

founded another alive yt2-830l
Section GP1 does not exist on eMMC !!!

Setting frequence to 21 Mhz
CMD Pullup Level: 1722 mV
CMD Active Level: 1794 mV
EMMC Device Information :
EMMC CID: 15010041574D4233520180F3EC5BA1E4
EMMC CSD: D02701320F5903FFF6DBFFEF92404008
EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 80F3EC5B , rev. 0x01
EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 10/2014
EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000)
EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000)
EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000)
EMMC Permanent Write Protection: No
EMMC Temporary Write Protection: No
Extended CSD Information :
Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01)
Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot
Boot Bus Config: 0x00 , width 1bit
H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled
Supported partition features [PARTITIONING_SUPPORT]: 0x07
Device supports partitioning features
Device can have enhanced technological features in partitions and user data area
Device can have extended partitions attribute
Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00
Backup saved: AWMB3R_80F3EC5B_20190306_094925.extcsd
EMMC Init completed.

Scanning soft partitions
GPT header is found and is valid
Partition: reserved, [000000005000 - 000000805000], size: 000000800000 (8.00 MB)
Partition: ESP, [000000805000 - 000002905000], size: 000002100000 (33.0 MB)
Partition: boot, [000002905000 - 000003905000], size: 000001000000 (16.0 MB)
Partition: recovery, [000003905000 - 000004D05000], size: 000001400000 (20.0 MB)
Partition: fastboot, [000004D05000 - 000005D05000], size: 000001000000 (16.0 MB)
Partition: reserved_1, [000005D05000 - 000006505000], size: 000000800000 (8.00 MB)
Partition: panic, [000006505000 - 000008505000], size: 000002000000 (32.0 MB)
Partition: factory, [000008505000 - 000028505000], size: 000020000000 (512. MB)
Partition: misc, [000028505000 - 000028D05000], size: 000000800000 (8.00 MB)
Partition: config, [000028D05000 - 000030D05000], size: 000008000000 (128. MB)
Partition: cache, [000030D05000 - 000038D05000], size: 000008000000 (128. MB)
Partition: logs, [000038D05000 - 000048D05000], size: 000010000000 (256. MB)
Partition: system, [000048D05000 - 0000C8D05000], size: 000080000000 (2.00 GB)
Partition: data, [0000C8D05000 - 0003A3600000], size: 0002DA8FB000 (11.4 GB)
GPT header successfully parsed

Get firmware version

Brand = Lenovo
Manufacturer = LENOVO
Device = YT2
Model = YOGA Tablet 2-830L
Phone platform = baytrail
CPU Abi = x86
Android release = 4.4.2
Firmware version = KOT49H.YT2-830L_USR_S000153_1501051824_WW21_ROW dev-keys
Firmware date = Mon Jan 5 18:35:03 CST 2015

Setting frequence to 21 Mhz
CMD Pullup Level: 1701 mV
CMD Active Level: 1784 mV
EMMC Device Information :
EMMC CID: 15010041574D4233520180F3EC5BA1E4
EMMC CSD: D02701320F5903FFF6DBFFEF92404008
EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 80F3EC5B , rev. 0x01
EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 10/2014
EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000)
EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000)
EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000)
EMMC Permanent Write Protection: No
EMMC Temporary Write Protection: No
Extended CSD Information :
Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01)
Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot
Boot Bus Config: 0x00 , width 1bit
H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled
Supported partition features [PARTITIONING_SUPPORT]: 0x07
Device supports partitioning features
Device can have enhanced technological features in partitions and user data area
Device can have extended partitions attribute
Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00
Backup saved: AWMB3R_80F3EC5B_20190306_094941.extcsd
EMMC Init completed.

Operation: Try to read table from emmc

Vendor: Intel
Searching GPT ...
GPT header is found and is valid
Checking for ROM2 ...
ROM2 is blank
Checking for ROM3 ...
ROM3 is blank
Section GP1 does not exist on eMMC !!!
GPT header successfully parsed

bootloader_gp1 on read by vendor 0b

sara.mobile · 03-14-2019, 23:31

Hi
I have this problem too
my tablet not powered and i think this model (intel atom cpu) booted from bios [Winbond ic] .
During OTA update bios fw corrupted and device not powered .
We must find bios fw and update bios with SPI Flasher .

08-22-2018, 01:33	#1 (permalink)
iArkAt8 Freak Poster Join Date: Apr 2012 Location: KU.mahabad Posts: 137 Member: 1744310 Status: Offline Sonork: 100.1617232 Thanks Meter: 43	Lenovo yoga yt2-830lc HI lenovo yoga yt2-830lc dead by wrrong firmware and coud not detect any driver by pc. i created 3 type of dump from alive board. 1: read by vendor xml file, Vendor Intel(GPT) 2: read emmc Rom1-1gb Rom2-4mb Rom3-4mb. Maybe wrong 3: read full dump by another soft at this time i dont have this alive board to create Right Dump while write by vendor from xml Error: First create a GP1 partition while write by vendor from image (readed full dump by another soft): Section GP1 does not exist on eMMC !!! after write emmc Rom1,2,3 write complete but still dead how to create GP1 partition or what is the size of GP1 partition? after created GP1 partition cant write by vendor ,emmc size dont match with vendor file after create GP1 partition and coud not repaire , i update emmc firmware and continued to repaire log: Running:SAMSUNG: eMMC firmware update... Init OK... EMMC NAME: AWMB3R EMMC Part Number: KLMAG2WEMB-B031 Auto FW file for IC: C:\Program Files\Z3X\EASYJTAG\eMMC Firmware\KLMAG2WEMB-B031.bin Z3X EasyJtag Software ver. 3.0.0.0 Skip loading eMMC Addon Firmware Box S/N: 19FFE00D100EFD04, ,FW Ver.: 01.63 CMD Pullup Level:1711 mV CMD Active Level:1794 mV Box IO Level:1800 mV CLK Rate:14000 kHz Using firmware file : C:\Program Files\Z3X\EASYJTAG\eMMC Firmware\KLMAG2WEMB-B031.bin Firmware EP Offset:00040000 Update Firmware ID Hash:3DBC084022F83292078D351C06C70E3E Setup firmware update mode, wait 2..30 sec... Success! Sending eMMC firmware... Success! Flashing eMMC firmware... Success! Repairing eMMC CID... Now Reconnect all eMMC Lines [POWER, CMD, CLK, DAT0]! Do it until progress bar is moving (20 sec timeout)! Success! eMMC firmware is updated now! Please reconnect all eMMC lines before next operation! Please don't forget to repair extCSD from backup! Please don't forget to configure BOOT sizes! Setting frequence to 21 Mhz CMD Pullup Level: 1711 mV CMD Active Level: 1794 mV EMMC Device Information : EMMC CID: 15010041574D423352003D424C2131C8 EMMC CSD: D02701320F5903FFF6DBFFEF92404008 EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 3D424C21 , rev. 0x00 EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 3/2014 EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000) EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000) EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000) EMMC Permanent Write Protection: No EMMC Temporary Write Protection: No Extended CSD Information : Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01) Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot Boot Bus Config: 0x00 , width 1bit H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled Supported partition features [PARTITIONING_SUPPORT]: 0x07 Device supports partitioning features Device can have enhanced technological features in partitions and user data area Device can have extended partitions attribute Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00 Backup saved: AWMB3R_3D424C21_20180822_042548.extcsd EMMC Init completed. Opening file: AWMB3R_rawprogram0.xml Error: First create a GP1 partition Setting frequence to 21 Mhz CMD Pullup Level: 1711 mV CMD Active Level: 1794 mV EMMC Device Information : EMMC CID: 15010041574D423352003D424C2131C8 EMMC CSD: D02701320F5903FFF6DBFFEF92404008 EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 3D424C21 , rev. 0x00 EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 3/2014 EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000) EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000) EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000) EMMC Permanent Write Protection: No EMMC Temporary Write Protection: No Extended CSD Information : Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01) Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot Boot Bus Config: 0x00 , width 1bit H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled Supported partition features [PARTITIONING_SUPPORT]: 0x07 Device supports partitioning features Device can have enhanced technological features in partitions and user data area Device can have extended partitions attribute Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00 Backup saved: AWMB3R_3D424C21_20180822_042738.extcsd EMMC Init completed. Opening file: Samsung eMMC AWMB3R_05_08_2018_15_06_16.bin Analyzing Image: Samsung eMMC AWMB3R_05_08_2018_15_06_16.bin Vendor: Intel Searching GPT ... GPT header is found and is valid GPT header successfully parsed Section GP1 does not exist on eMMC !!! The size of the last section has been updated

08-22-2018, 08:17	#2 (permalink)
layder Product Supporter Join Date: Jun 2002 Location: Belarus Age: 47 Posts: 3,188 Member: 13148 Status: Offline Thanks Meter: 2,948	I write some video (now without subtitles) https://www.youtube.com/watch?v=wJNvxMSdocM It may be help you You backup you can write by vendor -Intel Last edited by layder; 08-22-2018 at 08:26.

08-22-2018, 21:44	#3 (permalink)
iArkAt8 Freak Poster Join Date: Apr 2012 Location: KU.mahabad Posts: 137 Member: 1744310 Status: Offline Sonork: 100.1617232 Thanks Meter: 43	thanks for replay problem here, readed by vendor and find partition table from alive YT2 bootloader_gp1.bin have 0b size!!! see picture please http://tinypic.com/r/259y2wl/9 Last edited by iArkAt8; 08-22-2018 at 21:51.

03-06-2019, 07:20	#5 (permalink)
iArkAt8 Freak Poster Join Date: Apr 2012 Location: KU.mahabad Posts: 137 Member: 1744310 Status: Offline Sonork: 100.1617232 Thanks Meter: 43	founded another alive yt2-830l Section GP1 does not exist on eMMC !!! Setting frequence to 21 Mhz CMD Pullup Level: 1722 mV CMD Active Level: 1794 mV EMMC Device Information : EMMC CID: 15010041574D4233520180F3EC5BA1E4 EMMC CSD: D02701320F5903FFF6DBFFEF92404008 EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 80F3EC5B , rev. 0x01 EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 10/2014 EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000) EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000) EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000) EMMC Permanent Write Protection: No EMMC Temporary Write Protection: No Extended CSD Information : Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01) Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot Boot Bus Config: 0x00 , width 1bit H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled Supported partition features [PARTITIONING_SUPPORT]: 0x07 Device supports partitioning features Device can have enhanced technological features in partitions and user data area Device can have extended partitions attribute Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00 Backup saved: AWMB3R_80F3EC5B_20190306_094925.extcsd EMMC Init completed. Scanning soft partitions GPT header is found and is valid Partition: reserved, [000000005000 - 000000805000], size: 000000800000 (8.00 MB) Partition: ESP, [000000805000 - 000002905000], size: 000002100000 (33.0 MB) Partition: boot, [000002905000 - 000003905000], size: 000001000000 (16.0 MB) Partition: recovery, [000003905000 - 000004D05000], size: 000001400000 (20.0 MB) Partition: fastboot, [000004D05000 - 000005D05000], size: 000001000000 (16.0 MB) Partition: reserved_1, [000005D05000 - 000006505000], size: 000000800000 (8.00 MB) Partition: panic, [000006505000 - 000008505000], size: 000002000000 (32.0 MB) Partition: factory, [000008505000 - 000028505000], size: 000020000000 (512. MB) Partition: misc, [000028505000 - 000028D05000], size: 000000800000 (8.00 MB) Partition: config, [000028D05000 - 000030D05000], size: 000008000000 (128. MB) Partition: cache, [000030D05000 - 000038D05000], size: 000008000000 (128. MB) Partition: logs, [000038D05000 - 000048D05000], size: 000010000000 (256. MB) Partition: system, [000048D05000 - 0000C8D05000], size: 000080000000 (2.00 GB) Partition: data, [0000C8D05000 - 0003A3600000], size: 0002DA8FB000 (11.4 GB) GPT header successfully parsed Get firmware version Brand = Lenovo Manufacturer = LENOVO Device = YT2 Model = YOGA Tablet 2-830L Phone platform = baytrail CPU Abi = x86 Android release = 4.4.2 Firmware version = KOT49H.YT2-830L_USR_S000153_1501051824_WW21_ROW dev-keys Firmware date = Mon Jan 5 18:35:03 CST 2015 Setting frequence to 21 Mhz CMD Pullup Level: 1701 mV CMD Active Level: 1784 mV EMMC Device Information : EMMC CID: 15010041574D4233520180F3EC5BA1E4 EMMC CSD: D02701320F5903FFF6DBFFEF92404008 EMMC Manufacture : SAMSUNG , EMMC NAME: AWMB3R , HEX: 41574D423352 , S/N: 80F3EC5B , rev. 0x01 EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 10/2014 EMMC ROM 1 (Main User Data) Capacity: 14910 MB (0003A3E00000) EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000) EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000) EMMC Permanent Write Protection: No EMMC Temporary Write Protection: No Extended CSD Information : Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01) Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot Boot Bus Config: 0x00 , width 1bit H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled Supported partition features [PARTITIONING_SUPPORT]: 0x07 Device supports partitioning features Device can have enhanced technological features in partitions and user data area Device can have extended partitions attribute Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00 Backup saved: AWMB3R_80F3EC5B_20190306_094941.extcsd EMMC Init completed. Operation: Try to read table from emmc Vendor: Intel Searching GPT ... GPT header is found and is valid Checking for ROM2 ... ROM2 is blank Checking for ROM3 ... ROM3 is blank Section GP1 does not exist on eMMC !!! GPT header successfully parsed bootloader_gp1 on read by vendor 0b Last edited by iArkAt8; 03-06-2019 at 07:26.

03-14-2019, 23:31	#6 (permalink)
sara.mobile Major Poster Join Date: Aug 2016 Posts: 41 Member: 2614573 Status: Offline Thanks Meter: 5	Hi I have this problem too my tablet not powered and i think this model (intel atom cpu) booted from bios [Winbond ic] . During OTA update bios fw corrupted and device not powered . We must find bios fw and update bios with SPI Flasher .