My "MyFi" is going crazy! The display flickers on & off in the docking unit. Won't hold a charge out of the docking unit, and is making a whining/grinding noise (sort of like a cd-rom drive that is struggling). Any ideas?
I had this happen, and I solved it by connecting it to the car charger for a while, then bringing it in and connecting it DIRECTLY to the AC charger for a full charge. (This assumes the battery is not just kaput.)
Here's what I think happens: The AC charger doesn't have enough current capability to run the unit by itself AND keepp the battery charged (bad design), so, if left continuously ON, the battery will eventually drain. In this state, if you shut it off, the unit senses a low-battery condition and will try to charge, but the charging circuit tries to draw too much from the AC charger and the voltage droops (causing the whine) to the cutoff point (causing it to stop charging, another case of bad design). The car charger has more current capability, so it gets the battery charged enough to use the AC charger again.
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I had the same problem. This procedure from the "Technical Questions" section of http://shopdelphi.com/consumers/support/faqs/myfi/ worked for me: "My MyFi won't power up, how do I reset it?
To reset your MyFi, start by turning the receiver off and removing it
from its (car, home, audio system) cradle. Then remove the back cover
and battery. Using a small paperclip, press the reset button located on
the top left corner of the battery compartment. Now plug the AC power
adapter into a wall outlet and plug the power port directly into the
bottom of the MyFi (battery stays removed). Wait 10 seconds and listen
for a beep. After you hear the beep the message "insert battery" will
appear. Cycle the MyFi to ensure it powers up and powers down. If the
power cycle is normal, then turn off the MyFi, unplug the power adapter,
and reinstall the battery. Re-plug the AC power adapter directly into
the bottom of the MyFi. Wait 10 seconds and listen for a beep. After the
beep you will see the message "battery charging". Leave the MyFi
plugged in until it's fully charged. You will see the message "charging
complete" displayed. After the MyFi is fully charged, turn it on and
reset to the factory defaults. Unplug the MyFi from the AC power adapter
and using the battery power leave it on until it fully discharges
(approximately 2-5 hours). Plug the MyFi in using the AC power adapter
to recharge the unit and resume normal use.
If you need help at any point during this process contact us at
1-877-463-3574 for technical support."
You should: Insert your MyFi into its home stand and plug the AC adapter into the wall to charge the battery.But if its really not charging a battery replacement is already needed for this unit and you can get the battery from a authorize service center.
IF you take it out of the home dock and run it on batteries, I'll bet you it works again. The newer home docks TURN OFF the FM transmitter. Try a car dock, or try it with just the power plug plugged into the bottom of the MyFi, without the home dock and see if you can now get the FM transmitter to work. Let me know. Thanks and good luck.
your antenna connection inside the unit is broken on the circuit board,i had one of these and repaired it numerous times by taking the unit apart and resoldering the connection at the board,also their antennas don't last long as far as the antenna plug end is concerned
Sounds like a bad battery. Try plugging DC adapter directly into the bottom of the unit and turn it on - does it still act-up? If so, bad radio; if it works with adapter only, then battery and charging issue.
I posted on this myself looking for solutions, and then discovered the solution my self. The base pin connectors at the bottom of the receiver apparently become loose, and in order to make a good connection you need to push/pull the top of the receiver forward to achieve a connection. In the car cradel, I do this by jamming something between the receiver and cradel at the top to force and hold it forward). In the home base, I pull it forward at the top, and prop it that way with something heavy behind it. No one ever posted on how to take the unit apart and actually fix the loose connection.
I have the same problem. I finally was able to get Delphi Tech Service and found out that these units have a flaw. they have been going out after about 14-18 months and there is no known repair... neither does Delphi offer a repair service for this problem.
While in the truck, make sure the antenna is on the outside of the truck. It has magnet so it is easy to stick to the roof.
Do not know what to say about the home antenna, mine is not working right now.