The Box can't charge the RX/TX? Hollyland Tech August 09, 2022 03:20 Updated ①【TX】 Reset Hole ②【RX】 Reset Hole ③【Case】 Reset Hole If the charging case can't charge, please try the step as below: Step 1: Take all TX and RX out of the box, then power the box only for half an hour, and use a small needle to poke the hole on the box for 30s to reset it when charging. Step 2:Use a small needle to poke the hole on both TX and RX for 15s to reset the device. Step 3: Long press the mute button of RX when RX is in the box to check the firmware version, please check the link below to do the upgrade if it is lower than V126.96.36.199. V188.8.131.52 Download Path Step 4: Check whether the indicator light of the case is normal. If the light is always green (even charging), you can try to take out the RX&TX then upgrade the case separately to see whether it work. Note: If it does not work, please fill out the form below to submit the problem to us for an after-sale service. https://tqmlk9mc66.jiandaoyun.com/f/604987c7e2b41c000797231d Related articles Lark 150 Firmware Upgrade Tutorial How to set camera or phone if there is great noise How long does the Lark 150 can be used? How to connect the Lark150 to the smartphone and audio devices? UPGRADE Comments 0 comments Article is closed for comments.