AIR_Manual_506a_ENG_rev_1.pdf Page 75/96
On the other hand, if the update is underway and stops halfway through, then the firmware has been erased;
even though the instrument is completely fine, there is NO DAMAGE, but it will drain the battery fairly quickly.
To restore it, you will need to do a different kind of reset using 3 buttons that will reset the AIR and, at the same
time, bring it to bootloader mode:
o Press and hold the 3 and keys together.
o Wait 5 seconds and then release the key; the instrument emits a long acoustic “beep”.
o First release the key and then the key. Now the instrument is turned on and it is in “boot loader
mode”, waiting for the firmware upload.
: the screen will be totally blank at this point.
o Resume from step 6) making sure the “Set COM” is on “Auto-search” and “Set speed” on “115200”.
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