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Go Back   GSM-Forum > Product Support Sections > Hard/Software Products (official support) > UnlockTool

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Old 09-23-2022, 23:21   #1 (permalink)
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vivo y21s error [ Answered ]


FLASH Initializing usb... OK
Waiting for device... COM7 [BOOTROM:0E8D:0003]
Bypassing authentication... OK
Analyzing... preloader_k69v1_64.bin [MT6769:13:2192] [Cust]
Handshaking... OK
Reading hardware info... OK
* Hardware : MT6768 [Helio G70|G80|G85|P65] 0707 8A00 CA00 0000
* Security Config : SCB SLA DAA
* MEID : 06D9413E45D4C7F2A793B64C2EECC122
Sending Download-Agent... OK
Syncing with target... FAIL
Failed to receive SYNC! Result : 0xFFFF
UNLOCKTOOL 2022.09.20.0
Elapsed time : 50 seconds

any idea how to fix this error?

Last edited by ..:: SONY ::..; 09-30-2022 at 16:52.
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Old 09-24-2022, 07:27   #2 (permalink)
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Go MTK Universal >TICK EMI >SELECT > CUSTOM PRELODER > FORMAT DATA TRY AGAIN
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Old 09-29-2022, 18:54   #3 (permalink)
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Quote:
Originally Posted by ..:: SONY ::.. View Post
Go MTK Universal >TICK EMI >SELECT > CUSTOM PRELODER > FORMAT DATA TRY AGAIN
BACKUP NV Initializing usb... OK
Waiting for device... COM47 [BOOTROM:0E8D:0003]
Bypassing authentication... OK
Analyzing... preloader_k69v1_64.bin [MT6769:13:2192] [Cust]
Handshaking... OK
Reading hardware info... OK
* Hardware : MT6768 [Helio G70|G80|G85|P65] 0707 8A00 CA00 0000
* Security Config : SCB SLA DAA
* MEID : 06D9413E45D4C7F2A793B64C2EECC122
Sending Download-Agent... OK
Syncing with target... FAIL
Failed to receive SYNC! Code : 0xFFFF
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Old 09-29-2022, 19:07   #4 (permalink)
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What is your mobile problem?

You can this model via testpoint
http://www.youtube.com/watch?v=gf8CoiNoqV0

Last edited by ..:: SONY ::..; 09-30-2022 at 03:39.
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Old 11-23-2022, 22:01   #5 (permalink)
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I have the same error

I select the EMI Vivo Y21S pd2138f but when I try to flash or boot device, only just get an error, the same error.
Failed to send command: 0x10100! Error : 0xFFFF.
Please help me to a solution for fix this
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Old 11-24-2022, 00:53   #6 (permalink)
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i think this is new security even other tool can't bypass frp.. some methods are work is via tp..but tp sometimes is risky..please give solution about this team
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