I make videos about mobile technologies, smartphones, gadgets, firmware, applications and useful services. My thoughts on some issues, polls and behind the scenes of the channel in my Telegram channel: https://t.me/jeffersoens If you want to ask a question, then write to the group messages on VK: https://vk.com/jeffersoens For all other questions and suggestions, please write to the mail: jeffersoensusa@gmail.com