EWS3 EWS4 Test Platform Rechargeable High Performance Replacement for Land Rover EWS Programmer 1Fitment: EWS3 EWS4 test platform replacement for Land Rover EWS Programmer, test platform can work with all rechargeable keys. 2Rechargeable: Besides for Tango key programmer, EWS test platform is the only device in the current market which able to charge for the rechargeable key. 3Test for PCF7935 Or EML: EWS test platform is able to test whether the PCF7935 chip or EML electronic chip key complete programming or not. 4Test Items Working State: Able to test EWS3, EWS4 working or not, test EML key electronic chip working or not, and test after fixing EWS data. 5Easy to Use: Simple to operate, plug and play, no modification required, no complicated operations, convenient and easy for you to use. Specification Item Type: EWS Test Platform Material: Monocrystalline silicon EWS3 EWS4 Test Platform Replacement for Land Rover Features: It is rechargeable, besides for Tango Key Programmer, Replacement for Land Rover EWS Test Platform is the only device in the current market which able to charge for the rechargeable key. If you own the EWS and Replacement for Land Rover EWS Test Platform, it means you own a set of advanced car key charger, and it can work with all rechargeable keys. It can perform 3 functions as follows: 1. Able to test EWS3, EWS4 working or not 2. Able to test whether the PCF7935 chip or EML electronic chip key complete programming or not. 3. Able to test EML key electronic chip working or not, and test after fixing EWS data. How to use EWS3 EWS4 Test Platform? 1. Connect the EWS3 EWS4 with the Test Platform, and supply 12V power for the device, you will see the white indicator flashes, it indicates EWS3 is working well; after the EWS4 is supplied with 12V power, you will see the indicator light fast flash, it indicates EWS4 is working well. 2. After supplying the power but you can't see the white indicator flashes, it indicates EWS can't work well, please check whether 0D46J or 2D47J is not welded well, or maybe EWS is damaged, if it is so you could buy a used EWS and fix it by writing data. 3. Put the programmed PCF7935 chip or EML electronic chip key near the middle of the test platform, and wait for 3 to 5 seconds, you will hear the relay in the EWS3 or EWS4 make a sound when working and see the red indicator flashes, it indicates the chip programming complete. Package List 1 x EWS Test Platform