RE: TPS61010: the Efficiency of the 4.2V outputs between 0.7-3V

I have another question, I used the tps61299 to boost 1.5v to 4.3v, but now the output voltage is still 1.5v. I can't find the problem, please have a look，thank you.

Links：

Hello,

Please refer to our EVM circuit

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,

?? ?：

hello，I've confirmed it, but I still haven't found the cause

,

Links：

Hello,

How many boards you test, and where the chip you purchase from.

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