Hello fellow pilots, I've just joined the DJI family 
Purchased a used Spark for £210 with the remote, after deciding between the Hubsan Zino and Xiaomi FIMI A3. Hopefully I made the right choice...
I do have a few (noob) questions which I hope someone might be able to help me with!
#1 - I'm not sure what firmware the Spark is currently running, but the owner told me not to update it as it will limit it to 120m range. Is this true? Is there a list of firmware updates and what they did? I could not find one anywhere.
#2 - The video quality on the phone looks pretty bad. I'm assuming it's operating over 2.4Ghz WiFi via the remote, and the remote is operating over 5.8GHz to the Spark? Would an OTG cable solve this issue?
#3 - I'd like to do some FPV flying with it. I already own a pair of Eachine EV800D goggles but apparently they aren't compatible with the Spark due to DJI proprietary digital technology, is this true? Would my only option be to purchase a pair of (very expensive) DJI goggles?
Thanks so much for all the help!!

Purchased a used Spark for £210 with the remote, after deciding between the Hubsan Zino and Xiaomi FIMI A3. Hopefully I made the right choice...
I do have a few (noob) questions which I hope someone might be able to help me with!
#1 - I'm not sure what firmware the Spark is currently running, but the owner told me not to update it as it will limit it to 120m range. Is this true? Is there a list of firmware updates and what they did? I could not find one anywhere.
#2 - The video quality on the phone looks pretty bad. I'm assuming it's operating over 2.4Ghz WiFi via the remote, and the remote is operating over 5.8GHz to the Spark? Would an OTG cable solve this issue?
#3 - I'd like to do some FPV flying with it. I already own a pair of Eachine EV800D goggles but apparently they aren't compatible with the Spark due to DJI proprietary digital technology, is this true? Would my only option be to purchase a pair of (very expensive) DJI goggles?
Thanks so much for all the help!!