The JBL Charge 5 power bank speaker, top view, showing the -Power- button when the speaker is OFF.
When the Power button on your JBL Charge 5 is not working, this likely means one or more things.
Now in this model, one or more of the following causes may be the reason this button does not work.
Now we assume here that all the hardware and software in the 5 is working correctly. So we cover below the possibilities in the last item; Service Mode and Lock Mode. Thus, we describe below how to get out of these modes, and restore proper operation.
First, service mode may be active when the speaker does not power ON without the charger. Thus, it will not run on the internal battery while in Service mode. Moreover, when you do connect outside power, it powers ON right away, without you pressing the Power button.
Also, you cannot turn off the 5 while in Service mode. Well, you cannot unless you disconnect the power first. And then, it powers off without pressing the Power button. So when this service mode is active, the Power button appears to not work.
Finally, none of the buttons seem to work in Service mode, except for the ones needed to exit that mode. E.g. The 5 won’t pair with any devices or other speakers. And as stated earlier, the Power button does not switch it off either.
This is what you may have done by accident as follows. Power up the 5 first. Then press the Pairing and Play-Pause buttons at the same time. Hold in for around 10 seconds, until the 5 powers OFF. After that, Service mode is in effect.
Find these buttons pointed out in the next picture.
Note that you can enter this mode as long as the 5 is ON. It matters not whether you connect it to external power. But remember that once in this mode, you cannot exit it without first connecting the charger.
Firstly, what is a symptom of active lock mode? When in effect, the 5 does not power ON. This is true whether a working charger is feeding it or not. When you press the Power button, it just flashes ON for a second or two. And then it goes dark once again. And again, the speaker will not work while in Lock mode whether the charger is running or not. Thus it will not pair with devices or play any streams. And finally, all button lamps may glow while Lock mode is active.
And in this mode as well, none of the buttons work.
This is another action you may have performed by accident just before the Power button stopped working. You might have done that by activating Lock mode as follows. Power up the Charge 5 first. And then press the Pairing and Volume UP (+) buttons at the same time. Hold them in for approximately 10 seconds. Then release when the 5 makes the falling guitar strum power down sound.
Find these buttons pointed out in the next picture. Note that you can enter this mode as long as the speaker is ON. Note that it doesn’t matter whether the unit is getting external power or not. But remember that unlike in Service mode, you don’t need to connect the power adapter to end this mode. This is true as long as the battery has enough juice to power up the unit.
Now you can restore normal operation by deactivating this mode. But note that when active, you must connect external power to switch it OFF. Why? Because when in Service mode, the 5 won’t power up without outside power. But you can’t change modes without switching on the unit first. Thus, you need the AC adapter to make this fix.
Again, you can restore correct operation by cancelling this mode. But note that when Lock mode is active, you can switch it back OFF without the charger. But you can do that only if the battery is not dead.
Now you may not know battery status. So to be sure that you can power up the 5 after exiting Lock, just connect external power.
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