TPS25750: TSP25750D always in PTCH Mode

I have a TPS25750D EVM and also I made a TPS25750D demo board .

1.in my demo board , the chip's LDO_3v3,LDO1v5 is short to GND ,I do not know why ,previous time with the FW ,the PD can be a source well can charge the laptop and phone with 9/15/20v.

2. then I change a good chip from the TPS25750EVM  to the demo board  ,after I  installing the good one in my demo board  ,the  chip always in PTCH Mode , then seems my FW in the external EEPROM  does not load ,so I cannot use my demo to charge the device like phone and laptop ,the FW is good in previous board .

can you tell me how to change the PTCH mode to APP mode ?

I use aadvark to send the IIC cmd and flash the EEPROM

Another issue is that how can i issue the 4CC cmd by aadvark ?

Johnsin Tao：

HI

    我将这个问题放到美国E2E上，请等待美国那边的回复：

   e2e.ti.com/…/tps25750-tsp25750d-always-in-ptch-mode

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Jian Liu：

显示page not found

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Jian Liu：

case 也提了，就是没人回复。。

CS0758795

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Johnsin Tao：

Hi

    美国那边的回复：  If you don't have valid FW in EEPROM and it is not loaded Chip will stay in APP mode