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

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Old 06-25-2020, 10:38   #1 (permalink)
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jtag plus big problem flashig oppo mtk alwys comes error


oppo a1k and oppo a71 mtk

whe i try to write firmware by using vendor
always comes error data snd crc error
please fix this issue.
qualcom there is no problem.
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Old 06-25-2020, 11:32   #2 (permalink)
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ISP connection - non documentated function.

Some device work not fine,
some devices need HiPOwerCLK mode and power from USB,
some device need pull-up resistors and lower clock

since this is not a standardized connection, we cannot guarantee its high-quality operation

Always we reccomend
1) told GND wire
2) D0-CLK-CMD need be same lenght (recomended not over 50-100mm)
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Old 06-28-2020, 03:30   #3 (permalink)
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Quote:
Originally Posted by layder View Post
ISP connection - non documentated function.

Some device work not fine,
some devices need HiPOwerCLK mode and power from USB,
some device need pull-up resistors and lower clock

since this is not a standardized connection, we cannot guarantee its high-quality operation

Always we reccomend
1) told GND wire
2) D0-CLK-CMD need be same lenght (recomended not over 50-100mm)
i have tried all method but still writing error problem only for oppo mtk based mobile,other all brands no problem.
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Old 06-28-2020, 13:20   #4 (permalink)
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mtk devices have no ISP pins. and have bad connect at 90-99% of cases
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