Check the listing for details. PIONEER AVH-4100NEX SOFTWARE ERROR REBOOT FIRMWARE UPDATE FAILURE REPAIR SERVICE. Condition: Used. Listed at 89.00 USD. IMPORTANT PLEASE READWE ARE NOT SELLING ANY RADIO,THE LISTING IS FOR FOR YOUR OWN DEFECTIVE UNITWE ARE OFFERING REPAIR SERVICE ONLYIF YOU HAVE AVH-4100NEXTHAT KEEPS ON HAVING A REBOOT LOOP OR DISPLAYING SOFTWARE ERROR ON THE SCREEN JUST LIKE THE PICTURE SHOWS WE CAN REPAIR THE UNIT FOR YOU.WE ALSO REPAIR IF THE UNIT HAS FAILED TO UPDATE FIRMWARE SUCCESSFULLYAFTER YOU BUY THIS AUCTION WE WILL SEND YOU A MESSAGE WITH OUR ADDRESS WHERE TO SEND/SHIP YOUR UNIT.WE WILL ALSO GIVE YOU OUR PHONE NUMBER JUST IN CASE YOU WANT TO CHECK THE PROGRESS OF THE REPAIR.AFTER IT IS REPAIRED WE WILL SHIP IT BACK TO YOU WITH SIGNATURE CONFIRMATION TO MAKE SURE IT WILL GET TO YOU SAFELY.WE WILL DO OUR BEST TO SHIP BACK YOUR UNIT WITHIN 24 HOURS AFTER RECEIVING AND REPAIRING IT.PLEASE LET US KNOW IF YOU HAVE ANY QUESTIONS AND WE WILL BE HAPPY TO ANSWER THEM THE BEST WE CAN.THANK YOU