My v.reader is stuck in engineering mode how do i fix this

Yes, that is the whole idea of Limp Mode. It limits you to first and second gear so you can limp slowly to the nearest garage without causing catastrophic damage to the engine. What you need to do is connect a good quality DTC code reader scan tool and see the real reason that Limp Mode has been engaged.

https://www.google.com/search?q=1999+jeep+cherokee+limp+mode+causes

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what does odb reader say?

Try resetting the kobo reader by turning it off and back on again

if you have a seperate check reader for your terminal. start by unplugging the credit machine power source from side, then unplug all other devices from credit machine. clean the reader with canned air, never use liquid. plug in the devices and the power source last, this should fix the issue. if it does not you can

You have to go here, download, put the SD card into the computer, let it do it's thing - then, put the SD card into the VReader, let IT do IT'S thing, LOL, then take the SD card out of the VReader and it's done! Mine was stuck on the calibration screen as well, but this fixes it - you have to do this to set it all up correctly. It's part of the download process.
http://www.vtechkids.com/download/

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To reset you V.Reader you remove the batteries and any story cartridge that may be in your device. Hold the power button for 5-10 seconds. If this doesn't work the device needs to be replaced :(. Hope this helps.

You have to reset your vreader. To do this, remove all batteries and any story cartridge you may have in your device. Then hold the power button for 5-10 seconds. If this doesn't work the vreader needs to be returned :(. I hope this helps.

A stuck shutter is another common failure mode for digital cameras. The symptoms of a stuck or "sticky" shutter are very similar to CCD image sensor failure. The camera may take black pictures (for shutter stuck closed), or the pictures may be very bright and overexposed, especially when taken outdoors (for shutter stuck open). To confirm a stuck shutter, put the camera in any mode other than "Auto", and turn the flash OFF (you don't want to blind yourself for the next step). Next look down the lens and take a picture. You should see a tiny flicker in the center of the lens as the shutter opens and closes. If no movement is seen, then you likely have a stuck shutter. If so, please see this link for further info and a simple fix that may help. Also note that if you read the "reader's comments" section of the link, you may notice that Fix #5a seems to work best for the SD1000. Just be careful doing that particular fix.

A stuck shutter is another common failure mode for digital cameras. The symptoms of a stuck or "sticky" shutter are very similar to CCD image sensor failure. The camera may take black pictures (for shutter stuck closed), or the pictures may be very bright and overexposed, especially when taken outdoors (for shutter stuck open).

To confirm a stuck shutter, put the camera in any mode other than "Auto", and turn the flash OFF (you don't want to blind yourself for the next step). Next look down the lens and take a picture. You should see a tiny flicker in the center of the lens as the shutter opens and closes. If no movement is seen, then you likely have a stuck shutter. If so, please see this link for further info and a simple fix that may help.

Make sure that you read the reader's comments there for other techniques that may work if the outlined steps in the article don't. Also, please leave a comment there on how the fixes worked, or may not have worked for you.