Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 32; Flight Crew Type 4348
Aircraft Equipment Problem Less Severe
Flight Crew Overcame Equipment Problem
Company Policy; Aircraft
I recently transitioned from the X type aircraft to the Y type aircraft back to the X type aircraft Captain seat.  During each transition; I updated my tablet to the appropriate Jeppesen charts for the fleet that I was on. I am now back on the X type aircraft . I realized before my flight that I did not have the appropriate approach plates. The day before the flight I spent approximately two hours with the IT division trying to rectify the problem. We went as far as resetting my entire tablet ('wiped clean) to try to download the correct Jeppesen charts for the X type aircraft. We did not have any success. The IT department could not figure out why the automatic load did not have the appropriate charts.  I then contacted the appropriate company resource to discuss the issue but that division was closed for the day.  Prior to my flight I obtained a loaner tablet from operations that had all required publications.  Because I obtained a loaner; there were no problems associated with the flight.With the many fleet transitions at my airline; it seems likely that there is another pilot flying without the appropriate charts on their tablet.   This might be caught in pre-flight when the flight is entered but what about possible divert airports that would not be available.  As an example I looked up another airport on my old tablet to see if the charts were available.  [They] were not available.
Air carrier Captain reported noticing during preflight that electronic charts for his destination were not loaded in his tablet computer.