For those of you who want to remain on older firmware and don't want DJI Go 4 to keep bugging you about updating your firmware to the latest versions, just block the domains listed below and DJI GO 4 should no longer bother you with the message. The list is probably more than required if you just want to block the firmware update check, but I can't be bothered to refine it by removing each domain, rebooting and trying it out..Here are the domains I've blocked on my phone:My updated list: ( 11 August)127.0.0.1 abroad.apilocate.amap.com127.0.0.1 acbe.aasky.net127.0.0.1 account-api.dji.com127.0.0.1 active.dji.com127.0.0.1 adash.ut.taobao.com127.0.0.1 adhoc-usa.djicdn.com127.0.0.1 adhoc-usa.djiservice.org127.0.0.1 adhoc-staging.aasky.net127.0.0.1 adhoc.djiservice.org127.0.0.1 android.bugly.qq.com127.0.0.1 amap-api.cn-hangzhou.oss-pub.aliyun-inc.com127.0.0.1 api.weibo.cn127.0.0.1 api.weibo.com127.0.0.1 apigateway.djiservice.org127.0.0.1 apilocate.amap.com127.0.0.1 app-service.skypixel.com127.0.0.1 asset1.djicdn.com127.0.0.1 asset2.djicdn.com127.0.0.1 asset3.djicdn.com127.0.0.1 asset4.djicdn.com127.0.0.1 asset5.djicdn.com127.0.0.1 astat.bugly.qq.com127.0.0.1 baidu.com127.0.0.1 bam.nr-data.net127.0.0.1 c-adash.ut.taobao.com127.0.0.1 captcha.weibo.com127.0.0.1 cdn1.affirm.com127.0.0.1 cdn-hz.skypixel.com127.0.0.1 cdn-usa.skypixel.com127.0.0.1 cgi.connect.qq.com127.0.0.1 click.dji.com127.0.0.1 conf.international.baidu.com127.0.0.1 connect.facebook.net127.0.0.1 data.flurry.com127.0.0.1 d16koec4ujdumm.cloudfront.net127.0.0.1 d125tdjigxzobs.cloudfront.net127.0.0.1 dds.dji.com127.0.0.1 djicdn.com127.0.0.1 djiexplore.com127.0.0.1 djistatic.com127.0.0.1 download.vcdn.nokia.com127.0.0.1 enchat.djiservice.org127.0.0.1 epdg.epc.mnc410.mcc310.pub.3gppnetwork.org127.0.0.1 explore.djivideos.com127.0.0.1 feedback-external.djicorp.com127.0.0.1 fffdrone.aasky.net127.0.0.1 flurry.adserver.prod.g04.yahoodns.net127.0.0.1 flurry.com127.0.0.1 flysafe-api.dji.com127.0.0.1 fusion.qq.com127.0.0.1 gitlab.djicorp.com127.0.0.1 graph.facebook.com127.0.0.1 hydra.alibaba.com127.0.0.1 ios.bugly.qq.com127.0.0.1 js-agent.newrelic.com127.0.0.1 mydjiflight.dji.com127.0.0.1 newrelic.com127.0.0.1 pilotv2.djivideos.com127.0.0.1 pingma.qq.com127.0.0.1 pro-dji-service-usa-cdn.aasky.net127.0.0.1 product1.djicdn.com127.0.0.1 qbox.me127.0.0.1 restapi.amap.com127.0.0.1 rqd.uu.qq.com127.0.0.1 s.jpush.cn127.0.0.1 sis.jpush.io127.0.0.1 skypixel-hz.oss-cn-hangzhou.aliyuncs.com127.0.0.1 skypixel-usa.oss-us-west-1.aliyuncs.com127.0.0.1 skypixel.com127.0.0.1 static-cdn.djiservice.org127.0.0.1 statistical-report.djiservice.org127.0.0.1 stats.jpush.cn127.0.0.1 tpns.qq.com127.0.0.1 u.dji.com127.0.0.1 update.sdk.jiguang.cn127.0.0.1 upgrade.bgcentre.com127.0.0.1 upgrade.dj2006.net127.0.0.1 www.djiexplore.com 127.0.0.1 www.skypixel.com I'm on firmware .400, running DJI Go 4, v4.0.3 on a rooted android phone. I've simply added the above domains to the hosts file so the ip addresses points to 127.0.0.1, which is the phone itself. Another benefit of blocking the above is that my DJI GO 4 now uses Google Maps again. No issues with functions such as RTH, etc... Everything works as it should.In addition to the above, I've also firewalled the following IP addresses using afwall+:$IPTABLES -A "afwall" -d 113.31.17.108 -j REJECT$IPTABLES -A "afwall" -d 117.121.49.85 -j REJECT$IPTABLES -A "afwall" -d 117.121.49.66 -j REJECT$IPTABLES -A "afwall" -d 139.198.3.248 -j REJECT$IPTABLES -A "afwall" -d 117.121.49.90 -j REJECT$IPTABLES -A "afwall" -d 47.86.66.220 -j REJECT$IPTABLES -A "afwall" -d 47.89.41.62 -j REJECT