@ai.extraction · AI Extraction
Saved 2026-07-09 · Posted 2026-07-02 · Status: New
iPhone has three main diagnostic pathways: (1) Field Test Mode — dialer 3001#12345# opens cellular diagnostics (RSRP, cell tower ID, band info); (2) Battery Health — Settings → Battery → Battery Health & Charging shows Maximum Capacity, Peak Performance Capability, and Cycle Count (iOS 17.4+); (3) Diagnostics Mode — power off, connect to power, press and hold both volume buttons at boot, then connect to Apple's Self Service Repair portal for the full hardware test suite. This is the same tool Genius Bar technicians use. Run diagnostics before repair appointments to avoid upselling.
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Comments (15)
Instructions not clear, iPhone restarted and now shows an android 🤖 logo 💀
Nokia had this service mode in the 90s....
In Brussels, around 4 years ago, they didn't wanna repair my battery and told me it's a motherboard problem so I have to buy a new phone. I went to an Afghan-owned repair shop, replaced the battery and went back to the Apple store screaming. In the end, they gave me a new phone. All the phone escalations, drama, wasted money to travel, invonvenience and stress should be compensated by injustices of Apple. @apple
This is useful, and it’s good to educate yourself before buying. But you assume that they will automatically lie to you at the Apple store. I understand the lack of trust toward almost every modern institution and business, but let’s not keep feeding the paranoid frenzy. Let’s just try to remain calm and rational before deciding that they’re (whoever “they” are) all out to get us.
Most computers have this, been around since the beginning of computing, diagnostics or log files, nothing dubious or bad or evil behind it, it helps support teams to help you
If you dial#867-5309 it gets you the restricted room at Area 51
Ignore: edited comment just above. Though this is useful, it automatically assumes that they will purposely misleadthe Apple Store, they
DONT DO THAT THE RATS ARE POSSIBLY TRYING TO HACK YOYR DEVICE !
”That number can not be reached” is what happened to me…
My battery has now a maximum capacity of 69% 😂🥲
My junk iPhone 17 Pro can’t do normal texts or messages from things like banks where it sends you a message with a verification code. I had to get a second eSIM and phone number to be able to text my mom. Ever since the Verizon Outage thing and i was one of the 400,000 people who had their phone in SOS mode
It called tech support, any and all systems have it.
This shit was being posted on FB twenty years ago. Don’t fall for it
My phone won’t boot. Can I still use the diagnostic tool?
It’s not hidden there’s even an app that gives you access to it directly