@shane
When you go to the download center, you can click the drop-down box to choose the firmware you need. There is a version for the IPC_515BSD6. 
If you want to receive the notification/email for the reply to your post, you can try to set up it in your settings.
@bobw_168846258032803 Could you please send the video/screenshot to our support team for the check? Our tech will have a further check for the issues. We will fix the issues asap. Submit a request – Reolink Support
@shane_480776827805926
You can try to have the troubleshoot according to this article, https://support.reolink.com/hc/en-us/articles/900002125826-FTP-Test-Failed.
If it can't work, you can upgrade your camera with the latest firmware. V3.0.0.716 is the latest firmware for the E1 Zoom with the hardware version IPC_515SD6. Download the latest firmware here, Download Center – Reolink.
@jasonolga_503862842913010
You can try to unplug the HDD and check if the NVR will power on when no HDD is plugged. You may open the NVR housing and follow the below picture to unplug the HDD.
Or you can unplug the cameras that are connected to the NVR and check if the NVR can boot up.
If the NVR can't work after the above methods, you can submit a request to contact our support team for help, Submit a request – Reolink Support.
@markarron9_504005354344625 We don't have the smart TV APP currently. 
@crimp-on_62210811129
The support link issue has been fixed. You can have a check. Thank you for your feedback!
@crimp-on_62210811129 Thank you for your update! Glad to hear that it solves.
@mloving74_484111396954314 Thank you for your work! Our colleague will try to help.
@courtney_436738619097299
Thank you for the screenshot. You can try to delete and add your DUO again or reassign the channel for the DUO on the NVR monitor. If it still can't work, you can submit a request here, Submit a request – Reolink Support. You can tell them about your troubleshooting steps. Our technical staff will try to help.
@john-baker_399195799257249
This is limited by the browser function now. So all of our cameras don't support the 4K preview currently.
@felicia78863_503417948106957
If you want to give the password for the camera under the NVR in Web Browser, you can connect your camera to the PoE switch, which is under the same router as the NVR connects. Then you can connect the camera as a standalone one to the Web Browser and add it under the NVR too. In that way, you can set up the login password of the camera in the Web Browser. This is the guide to change the login password, https://support.reolink.com/hc/en-us/articles/4408443827353-How-to-Change-the-Login-Password-for-Your-Reolink-Camera.
@spflmf_288692412260538
For the stream mode issue, can you send the video to our support team to check? Our Android team may need some information to check the bug.
You can submit a request here, Submit a request – Reolink Support.
@garrett-wolf_360452954181767
You can now try to change the stream mode to high and back to low to figure out the issue. Thank you for reporting the issue to us. We are checking the problem now.
@john-baker_399195799257249
For this, the RLC-810A doesn't support the 4K view now. If there is any news, I will let you know.
Hi all，
We had heard about the Andriod App 4.29.05 issues, and we are working on it.
We need more information to locate the App problem. If you have any questions or find anything is not working now, please send them to our tech support. Also, attach your device info, App version, screenshots of the error message, or a short video.
Tech Support: https://support.reolink.com/hc/en-us/requests/new
We will fix these issues ASAP. Thank you for your understanding！
If you want to roll back to the previous version 4.28.0.8, you can download the APP here, https://drive.google.com/file/d/1yvKIfwjSMrIOgjmCfwZywUdbjQ5yFHbL/view?usp=sharing.
@patricklindner_503115913740522
Could you please try to change the stream mode from high to low? I have sent you the message via Chat. Can you check?
@crimp-on_62210811129
Do you view via Wifi or cellular? You can try to change the stream mode from high to low. We may need some information to check the issue. I have sent you the message via Chat. You can check.
@mloving74_484111396954314
For the PIR icon, you can still enable and disable the PIR sensor by clicking the PIR icon. You don't need to reset the camera.
@starfish21_37513982370005
Hi there, for the PIR sensor change, I will collect your request and forward it to the team for consideration.
For the horizontal view and the vertical view problem, could you please reboot your APP and try again?
If you want to go back to the previous version, you can download it from our download center. The version is 4.28.08.
Do you remember what has been mentioned in our 2022 roadmap? The first product to release is the RLC-1212A(upgraded version), the 12MP smart PoE camera!
We always take your feedback into consideration. The RLC-1212A is with IR light and a powerful spotlight. The spotlight can be set to be motion-activated, on as scheduled or off. With the powerful spotlight on, no worry about the poor light at night.
Besides the IR light and spotlight, the RLC-1212A is also with 106° FOV, two-way audio, and person/vehicle detection. Now the RLC-1212A can better guarantee your security!
Hit this link to know more details, https://reolink.com/ee/product/rlc-1212a/.
(Note: Now the RLC-1212A is only available in the USA and EU countries.)
There will be also a trial program for the RLC-1212A in March. We will offer a free RLC-1212A for the winners to test the camera! With your feedback, we can better improve the product. If you are interested in this program, you can follow this page to join us,
https://reolink.com/reolink-trial/.
