I have a few questions (public, not private):
1. Do you know the cause of damage to phones (motherboards)? the topic is also known on the xda forum, it is not a single case (statistically, only some users wrote something about it on the internet)
2. Have the mainboards or other responsible components been improved in the next, newer series? Are the phones repaired on the same components as before the repair?
3. Are there global problems with the availability of spare parts at present?
I am waiting for your sincere reply and best regards