what would compel manufactures to loan you products to review--what makes you so special? They don't know who you are--why would they trust you to make an objective review? Are you a professional reviewer or someone who is well established in this field?
You need to establish yourself first whether it is on YouTube or anywhere on the Internet to become a tech influencer to gain any credibility to who will watch your reviews and trust what you have to say. And if the Blackberry Bold is the only device you have and it is outdated, then how would you know what to look for in new devices to compare to and make a objective review of products if it were loaned to you.
I'm not trying to be discouraging, but you need to gain experience in this field and have sufficient knowledge around the technologies you will be reviewing, before anyone will give you the light of day to trust their products with you and allow for you to make an objective review. Right now as it stands, you don't have a resume to show for as to what you are capable of or how you fair in front of camera. And if you want to be a product reviewer, you really have to standout from the rest, as their are plenty of product reviewers already on YouTube.
I hope you understand where I'm going with this.
Good luck to you, I wish the best to your success.