J500H not connect with ISP to easy Jtag...

[CoMoBat]

Hi I want turn off J500H FRP


Try to connect it to easy by direct emmc but box not detected my phone!!!


I pull 100 ohm resistor between CMD-vccq and Data-vccq but not change any things.




can some one help me?


thanks

[layder]

Originally Posted by CoMoBat

Hi I want turn off J500H FRP

Try to connect it to easy by direct emmc but box not detected my phone!!!


I pull 100 ohm resistor between CMD-vccq and Data-vccq but not change any things.
сan some one help me?


thanks

EasyJTAG Plus box not need pull-up resistors.
If you have no connection - you can use HiPower CLK mode and power from USB, also you can try to reduce Frequence

[CoMoBat]

Originally Posted by layder

EasyJTAG Plus box not need pull-up resistors.
If you have no connection - you can use HiPower CLK mode and power from USB, also you can try to reduce Frequence

I have not plus!



Also I try HiPower CLK and USB cable and reduce Frequence, but not changed any thing!

Is it possible this J500H has to emmc pinout?

[layder]

Originally Posted by CoMoBat

Is it possible this J500H has to emmc pinout?

ISP connection does not guarantee you 100% success for the following reasons: when supplying power to the board (1,8v and 2.8v), some chips and a processor can be put into operation and interfere with working with the eMMC chip.

Therefore, the only way out is to make the ISP connection to supply power to the board through usb, and use the "HiPower CLK" mode

you need to make special adapter with connected together 4 CLK pins on on the adapter and use this adapter only with "HiPower" mode

at this mode from box use only GND, CMD, CLK, Dat0 wires, and use USB cable and power board through USB connector