probleme emmc isp

mrawzin · 发表于: 2017-2-2 14:41:38

Hello
I have rt809h. All it works. (Nand .nor vga). But with emmc isp i can not
I have tested more than 5 times with different devices.
I have chek .usb voltage detection .usb 4.61.vdd 3.01
I test the rt809h with the self test,all is well
I have to remove emmc, direct isp ,same problem.Why i cant read the emmc with the isp ????

hli3276 · 发表于: 2017-2-2 15:58:12

USB power supply not working properly, please insert to the back of the computer chassis USB port or external power 9-12V1A.

mrawzin · 发表于: 2017-2-2 19:20:36

本帖最后由 mrawzin 于 2017-2-2 23:31 编辑

9-12V1A d'alimentation externe

正信家电维修 · 发表于: 2017-2-2 19:24:10

电脑usb口供电不足？？？？？？

mrawzin · 发表于: 2017-2-2 19:34:35

本帖最后由 mrawzin 于 2017-2-2 23:33 编辑

with 11V1A d'alimentation externe

mrawzin · 发表于: 2017-2-2 19:51:11

本帖最后由 mrawzin 于 2017-2-2 22:33 编辑

can you make screenshot a USB voltage test?
with usb cable and external power 9-12V1A

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probleme emmc isp

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