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4-inch iPhone released in March 2016 with similar hardware specifications to the 6S. Available in Silver, Space Grey, Gold, or Rose Gold with 16/32/64/128 GB storage options. Model: A1662 and A1723

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Why is my iPhone SE reboots itself / won't charge?

Hi everyone,

After replacing my Iphone SE IOS 12.1.2 battery, I have the following issue :

  • The phone reboots itself every 5 minutes approx., while using it or not, plugged in or not.
  • The battery is stuck around 13% and won’t load

I’ve tried to :

  • Change the cable and charger, wall charger or USB plugged in my Mac -> same
  • Plug back the old stock battery -> same issue (what?!)
  • Softly brush the charging port to clean it-> same
  • Installed a new battery (so the 3rd one) -> same
  • Hard Reset -> same
  • DFU Restore -> same

Other :

  • The battery state is “Service” in IOS parameters (for the 3 batteries…)
  • Doesn’t seem to have this issue when plugged in my Mac, while in Itunes restore mode (the one with the Itunes logo on the phone screen). NOT 100% SURE.

Do you know what may be the cause(s) of this issue and what may be the solutions ? Maybe we can discard a battery issue as it appears on 3 different batteries.

Answered! View the answer I have this problem too

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There are some tiny components just above the battery connector. It’s not uncommon for them to get fully or partially dislodged during a DIY repair. One of them (highlighted) is critical for communicating the battery charge state to the CPU.

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If it is damaged or missing, it will need to be replaced, which requires a micro-soldering repair.

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1 Comment:

Hi dear, i have the same problem but witn an iphone 11, any help?

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That’s one very fine answer with an explanation and schema. And guess what : BOOM perfectly nailed it, kudos to you !

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As we can see this FL2400 component is missing, probably damaged using the plastic spudger. Now I have to find a micro-soldering repair shop nearby, too bad we are 7000km away ;)

Thanks again ! I really appreciate your help.

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4 Comments:

7000Km? Pfft, that's nothing :>). My record to date is receiving something from 12 000 Km away (Zambia)

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Nice ! Well maybe you'll receive one day something from France :p

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J'espère bien, ça me ferait plaisir d'aider mes cousins!

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Hey there did you ever get it fixed? How much did it end up costing you if you remember?

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Julien will be eternally grateful.
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