# Appendix B Troubleshooting

#### A.1        App Does Not Detect iDynamo

If the app you are using won’t detect or connect to the device, check the following:

·       Check the electromechanical connection:

o   Make sure the host’s case is not interfering with the connection.

o   Make sure iDynamo in its adapter sleeve does not shift on the host when gently wiggled.

o   Make sure the device’s connector is not damaged or dirty.

o   Connect another device to the host’s connector to make sure it is functioning correctly.

·       For an app to interface with iDynamo, it must use the same Bundle Identifier as the device. iDynamo can also be configured with a different Bundle Identifier, in which case the app must use that Bundle Identifier instead. For details, see section 8 Developing Custom Host Software.

#### A.2        Bad Reads / Swipe Not Detected <a href="#a.2_bad_reads_-_swipe_not_detected" id="a.2_bad_reads_-_swipe_not_detected"></a>

If card swipes are not being registered correctly, check the following:

* Card orientation. Make sure the card is oriented so the magnetic stripe is inside iDynamo and facing toward the thicker side of iDynamo (away from the MagTek lock logo). See section 6.3.2 How to Swipe Magnetic Stripe Cards.
* Damaged card. The magnetic stripe on the card may be damaged. Try another card.
* Excessive buildup on the read head. Clean the read head by swiping a cleaning card through iDynamo several times in different orientations until the card comes out clean. Cleaning card 96700025 is available from MagTek. If the operating environment is dusty, use compressed air to blow dust or other residue out of iDynamo.
* Swipe mechanics. A good read depends on the magnetic stripe moving straight over the read head and above a certain speed. Try swiping more quickly and straight through the guide path of iDynamo. The range of working swipe speeds is listed in Appendix A Technical Specifications.&#x20;
* Ergonomics. Make sure there are no mechanical hindrances (such as an accessory case or stand for the host) or ergonomic factors (such as awkward mounting angle) that make it difficult to swipe smoothly and straight through the device.

If iDynamo still does not register swipes after following these steps, contact your supplier for assistance.


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