https://devzone.nordicsemi.com/f/nordic-q-a/4566/i-used-nrf24le1g-instead-of-nrf24le1eIn my module, I used nrf24le1G instead of nrf24le1E, but now not working, I can&#39;t program with my programmer which is working with nrf24le1E. What is wrong with me ? what is the difference between le1E and le1G ? I produced 1000 of module with nRF24LE1Gen-USTelligent Community 13Tue, 06 Jan 2015 00:50:40 GMThttps://devzone.nordicsemi.com/thread/16187?ContentTypeID=1Tue, 06 Jan 2015 00:50:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ddb0483d-d779-4cfa-93c8-3e8132f726a8ye_jian_ping<p>nRF24LE1G need higher voltage for PROG pin,you can find this in product specification for the OTP version of nRF24LE1.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/16186?ContentTypeID=1Mon, 24 Nov 2014 14:12:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cf0dfa0c-f93e-4a58-9e32-e67dc5e9c152TKS<p>OK, thanks for your Help. Can I use the same programmer which I use for le1E ? or any change required for programming ? because my current programmer saying like this: Download data OK! Read and check... Check Fail, Memory is not match the HEX file! DOwnload Fail!</p> <p>Can you help me ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/16185?ContentTypeID=1Mon, 24 Nov 2014 13:14:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cb95a02a-1371-4818-97a1-a1a5bfd6c875Asbj&#248;rn<p>The nRF24LE1G version that you have used is the OTP (one time programmable) version of the 32-pins nRF24LE1. So you are able to program them once and then they can&#39;t be changed/re-programmed. Please have a look in the <a href="https://www.nordicsemi.com/eng/Products/2.4GHz-RF/nRF24LE1-OTP">product specification for the OTP version of nRF24LE1.</a></p><div style="clear:both;"></div>