Internet Recovery fails. USB Boot fails. Target mode won't mount.
Macbook Air 2019 TrueTone, ran before I deleted the SSD (stupid). Battery shot, requires power supply to run.
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Tried Internet Recovery with CMD-R, OPT-CMD-R, SHFT-OPT-CMD-R. All run download with progress (about an hour), then remain at full progress bar for days until I shut down. Reset PRAM. Tried various Internet, including Gigabit speed. 20 tries or more, occasional dropped Internet error -2003F on lousy WiFi.
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USB boot defaults to Internet Recovery. USB Drive is recognized, chosen, goes directly to Internet Recovery. Created several USB boots with several sticks and several apps, including manual w/ Terminal. Chose various erase formats (GUID, etc). Chose several OS installers (Catalina, Mojave). Latest USB stick with Mojave boots older 2014 iMac, but not the new Macbook.
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Will not mount in Target mode. Macbook displays target mode, but will not mount on iMac. Bought a new wire.
Beautiful, new, clean laptop, hardly used, left discharged for months, thus bad battery.
Can anyone think of anything else to try? Apple Store, maybe? Would they do anything I haven't? Does a dead battery affect these things?
Best Answer
Call Apple or chat online with service would be my next step. Ask for a mail in repair if available and convenient. #3 is really unlikely to be anything easy if you have charged it for 2 to 4 hours.
Flat rate repairs for these are quite reasonable amd it would cover things like battery and or cpu board. Possibly under warranty or a program, worse case you get a quote for a professional battery repair.
A totally flat battery can drag the whole controller and board down. Hard to say until it’s in the shop with known good parts to test things out internally.