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Hi all, I decided to replace my iPhone X’s battery after 3 years, the battery’s capacity is now 82%. I ordered from aliexpress a brand YILOZOMANA because I replaced my iphone 6s plus’s battery from this brand and it was good. After I open the iPhone X to remove the old battery, I accidentally broke the haptic engine flex cable, I continued to put new battery in and try to turn it on but nothing happened. I tried again with the old battery but it still the same and the iPhone started to heat up quickly. Is it required a haptic engine to turn on?If not 1 then the logic board might be damaged because I tried with the old battery.

In case 2, is it still possible to fix it? I have ordered new haptic engine. I will try again when it comes. Any help would be appreciated. Thank u for reading.

Hello 1/ No the haptic engine is not necessary to turn on the phon. 2/ Do you tried to boot your phone with a lightning cable ? Are you sure that your batteries (old and new) are charged ? Replacement battery is sometime a lottery and a brand that worked correctly one day can be deffective in another batch. Find a good provider rather than a good brand (I saw fake Apple Battery : the brand is good… but it was a junk product) Of course you can damage your mother by many different way but it would be surprising that you manage to do it if you were a bit cautious during battery disassembling . I have notice that sometime when you disconnect the battery and reconnect it, the power button is not efficient and you need to boot with the lightning cable.