Question about Symbol Motorola MC3090 Handheld Computer

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Motorola MC3090 bricked

I have a couple of MC3090 which i flashed to a newer firmware without a problem (flash via SD-Card). one device get stuck while flashing PBL, after a while it "burped" (really sounded like this) and switched off. it is not restarting. charging led is flashing / solid (battery charges) on craddle, it responds to the cold-boot keypress with flashing the led once. display backlight is lit for a quarter of a second but LCD seems not powered on. thats it, nothing other. it does NOT boot into IPL. is there a way to reflash the device? JTAG?

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Posted on Jan 02, 2017

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SOURCE: Motorola MC3090 do not read barcode starting with zero

look online there are learning barcodes out there you can scan, look for one with zero in front, if you are making the barcodes yourself than put a * at the beginning and end and then make barcode, it will capture everything in between,

Posted on Aug 26, 2009

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SOURCE: IPL Flashing screen will not come up. Flashing now impossible?

Unit is stuck in IPL mode, you need to completely reload this unit, I can help You can always contact me by phone or email 630-622-2024 Please visit our website

Posted on Oct 19, 2009

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SOURCE: battery problem, MC3090

It sounds like it is. Fully charge the device to 100% and allow it to drain fully until it completely powers off, then recharge to 100% again while the device is powered off (usually takes 2 hours +) if that doesn't alleviate the 'memory effect' then the battery has reached the end of it's useful life and should be replaced. Good luck!

Posted on Nov 10, 2009

  • 38 Answers

SOURCE: How do i replace the memory backup battery on a Symbol mc3090?

Hi Ken. Replacing the memory backup battery (flash/BIOS battery) on any unit is tricky to say the least. I would implore you to check and see if your scanner is still under factory warranty with Motorola/Symbol then send it in for the repair. If it's not, I would have a chat with the vendor you bought it from; a lot of times they will do little repairs like that for a reduced price since you are a customer (I know I do). If both of those fail: the BIOS battery is on the main board of the unit. To get to it you will need to remove the outer shell and then start removing components until you get to the board and the battery. Again, unless you are very experienced with electronics like this (maybe even PCs) and really confident in your abilities, I really would recommend having a professional do this. I would offer to, but our repair facilities won't be up until February of this year. If you need some suggestions on where to go or need to troubleshoot more, please feel free to send me a message or email me at I hope this helps. Good luck!

Posted on Jan 05, 2010

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