Chosen Solution
I’ve a problem with my son’s MacBook Air 11” in that the SSD won’t mount, i.e. on boot I’m getting the flashing folder icon. Resetting the PRAM and SCM has no effect.If I boot with Internet Recovery the SSD doesn’t appear in Disk UtilityBooting into diagnostic mode informs me that “There may be an issue with a storage device. “ and the code VDH004.I opened up the case and checked that the SSD is seated correctly. It is.I finally removed the SSD and put the module in his brother’s identical MacBook Air and this booted from the module without issue. Any ideas as to what the issue is? The above makes be suspect that there is a hard disk controller or logic board issue, but I’m open to suggestions.
Does the system boot up from an external drive? If it does then your issue is something related to the SSD connector and its logic. As you have a second system you could try connecting the two together and leverage Target Disk Mode to see if you can even access the drive from the second Mac Understanding the Applications for Target Disk Mode, most likely that won’t work either. You may need to replace the connector or replace the logic board if that is easier for you. Reference: Mac startup key combinations
Sounds like the SSD is broken. if it doesn’t recognize it all in any machine, replacing the SSD is the solution. Since these flash modules are pretty expensive, i’d recommend buying a second hand one. make sure you buy the correct one, since there are a lot of different models and they do not all fit.
