Hi. I really tired about my drone. I tried my drone february 6, 2018 (today). My drone still bugs about the intermittent lost signal during my flying. And the bad focusing to the left side of screen is really boring when I'm looking this after my flying. I really want resolve this problem.

I verified the real word for this. Many forums talk about bluring. this is my second problem.

Dear. We are sincerely sorry for the inconvenience caused to you.
For the signal issue, may I know if this issue happens every time when you are operating the drone? If so, please kindly provide us with the screenshot of About-page, we will check and try to help.
For the focus issue, could you please upload several original photos by using DropBox, we also will try our best to confirm.
Thank you in advance.

So after my last night with my brother, I resolved my issue. The master problem is DJI go 4. The app is large for my tab 6a. It has many difficult with olds versions in androids. I have done the test with a iphone and a lg g3. This is great. The app works well now. I have choosen the lg g3 for a larger screen than the iphone.

Now it remains to improve the issue about the bluring in the left of screen. The autofocus is not good for this.

I think you have bluring in picture because of camera. I solved it by replacing camera. I bougth spare part on ebay and I replaced for new one. You can see it here

Good. I have the warranty again. The cam musts be expensive.

I did a video yesterday. I have put in manual focus and I see very well my cam is not perfect. I will do a new post for this. DJI musts serve their customers correctly.