APX 1500 mobile

[19sargeusmc56]

I have this 1500 on the bench. Main power applied....power on manually to "APX1500" then it goes off, or dark, one of the 2.
Tried to apply ign power...radio does not come on, and power button yields the same result.

Haven't played around with too many APX mobiles......just the portables.....I gotta be missing something stupid..

 

[KevinC]

Trunked radio? If so it may be inhibited.

 

[MTS2000des]

If he tries reading it (and it connects to his PC while power applied even if the screen is dark) with CPS he will get his answer if it is!

 

[dickie757]

Jump pins 14 and 15 on trapezoid

 

[AEFI]

Does a red light slow blink once when turning it on? Can it connect to the computer and if so what does it say when you try to read it

 

[lynskey85]

Do you get an FL01/90 before it shuts off and/or does it fall into Maintenance Mode? If yes, some sort of hardware error where the head is booting but the RF Board isn't (and yes that can happen in a dash mount). If the answer is no on both, then as said above, sounds like it could have been inhibited.

 

[kayn1n32008]

Do you get an FL01/90 before it shuts off and/or does it fall into Maintenance Mode? If yes, some sort of hardware error where the head is booting but the RF Board isn't (and yes that can happen in a dash mount).

Did you even read what he wrote?

If the answer is no on both, then as said above, sounds like it could have been inhibited.

🙄

 

[lynskey85]

Sure did. Making sure all the details are covered.

 

[Colin9690]

… he must’ve found the answer on his own 🤷

 

[19sargeusmc56]

No...have no answer yet. The radio does not get to the point where it tries to connect to the system. Flashes APX1500, then goes dark. Does not connect to the computer. hit the pwr button again and same same. No response to ign power applied. Have to hit the pwr button.

 

[19sargeusmc56]

Do you get an FL01/90 before it shuts off and/or does it fall into Maintenance Mode? If yes, some sort of hardware error where the head is booting but the RF Board isn't (and yes that can happen in a dash mount). If the answer is no on both, then as said above, sounds like it could have been inhibited.

no

 

[K7UDZ]

AN or BN model?

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If AN, I've seen some with corrupted firmware before; rare but it does happen. You can look up the DSM and identify the FORCE_FAIL test point (6500/7500 you can use the MHLN6999/7000 option board and use the button on it, but it won't fit a 1500/4500) - ground that while applying power to the brick, and check whether it enumerates on USB using the J2 (rear trapezoid) connector with an OEM USB cable (aftermarket will not work).

If it does enumerate, your host firmware is bad, but the bootloader is intact enough to boot. That's a good sign, but cannot be fixed with publicly available software, would need to be flat-rated via Depot.

If it doesn't enumerate, you either followed the instructions wrong, or your bootloader is corrupted too, or you have some unrelated failure mode. Still would need to be flat-rated via Depot.

So really, officially it has to be flat-rated either way, but if you do the FORCE_FAIL test, then you can at least know what the issue is.

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BN I've yet to see sufficiently-corrupted firmware on, they will usually stay in the bootloader if the host firmware is corrupted, and can be identified by simply using the J2 (rear trapezoid) connector with an OEM USB cable (aftermarket will not work).

 

[19sargeusmc56]

Ok, so the bottom line is this is a radio that needs to go to the depot then.....?

 

[K7UDZ]

If this is an agency radio, yes, just Depot it. Could try swapping heads first to be sure it's not a head problem, but if it's not an obvious issue, just make it Moto's problem.

If this is a personal radio, then there are further avenues you could explore, but the easiest (but not cheapest) route is still just sending it in.

 

[PARTHCITY]

Will it go into Flashzap? The rightmost button on the bottom row and the emergency button were both held down while powering up. Also how are you applying ignition power? This sounds like an issue I was having with a 6500 a few weeks ago.

 

[K7UDZ]

Will it go into Flashzap? The rightmost button on the bottom row and the emergency button were both held down while powering up.

Just FYI for clarity, this puts the head into FlashZap, not the radio.