Uploaded February 2026 | Updated September 2026, 1 day ago
Tearing down a 20 year old iPhone 4 with a swollen battery (not a thermal runaway) …
↓↓↓ Complete description, time index and links below ↓↓↓
I’m still working on a new video about the full fly by wire electric outboard project (link below). So meanwhile we’ll take a 20 year old iPhone 4 8GB with a puffed-up battery apart. The culprit here was not a thermal runaway, but self-discharge.
00:00 Intro – too busy, so we do another teardown
00:36 Walk around – odd button/connector placement
03:39 Disassembly 1 – it came pre-disassembled
07:15 Vibrator – the tiniest motor with an imbalance
07:40 Disassembly 2 – things are getting a lot harder
12:31 Headset connector – is its own module
13:12 Disassembly 3 – making only slow progress
20:54 Mute switch & volume buttons – really tiny
21:25 Disassembly 3 – going for a spudger attack
25:46 Microphone and speaker grill – self-explanatory
26:03 Power button – self-contained tactile switch
26:09 Frame – never intended to be taken apart
27:08 Apple connector – the old style one
27:17 Microphone – the tiniest thing ever
27:42 Board – L-shaped with lots of cans
28:09 Back camera – a single module with LED light
28:28 Front camera – chip and lens separate
29:05 Antenna 1 – first connection to the metal frame
29:23 Display – leaking liquid crystals (had to dispose it)
30:19 Antenna 2 – second connection to the metal frame
31:46 Speaker – tiny with a large resonance cavity
33:58 Battery – self-discharged to destruction
37:05 Wrap-up – next is full fly-by-wire again, bye
Teardowns youtube.com/playlist?list=PLwq-2MnM58FJPg01ooMBgy_CxDxAem0my
Full Fly-by-Wire Electric Outboard youtube.com/playlist?list=PLwq-2MnM58FKvpYgFXgNCjlKo14L0KI16
#apple #iphone #liion #liionbattery, #lithiumbattery, #lithiumbattery, #teardown #disassembly #disassembling #robertssmorgasbord
Tearing down a 20 year old iPhone 4 with a swollen battery (not a thermal runaway) …
↓↓↓ Complete description, time index and links below ↓↓↓
I’m still working on a new video about the full fly by wire electric outboard project (link below). So meanwhile we’ll take a 20 year old iPhone 4 8GB with a puffed-up battery apart. The culprit here was not a thermal runaway, but self-discharge.
00:00 Intro – too busy, so we do another teardown
00:36 Walk around – odd button/connector placement
03:39 Disassembly 1 – it came pre-disassembled
07:15 Vibrator – the tiniest motor with an imbalance
07:40 Disassembly 2 – things are getting a lot harder
12:31 Headset connector – is its own module
13:12 Disassembly 3 – making only slow progress
20:54 Mute switch & volume buttons – really tiny
21:25 Disassembly 3 – going for a spudger attack
25:46 Microphone and speaker grill – self-explanatory
26:03 Power button – self-contained tactile switch
26:09 Frame – never intended to be taken apart
27:08 Apple connector – the old style one
27:17 Microphone – the tiniest thing ever
27:42 Board – L-shaped with lots of cans
28:09 Back camera – a single module with LED light
28:28 Front camera – chip and lens separate
29:05 Antenna 1 – first connection to the metal frame
29:23 Display – leaking liquid crystals (had to dispose it)
30:19 Antenna 2 – second connection to the metal frame
31:46 Speaker – tiny with a large resonance cavity
33:58 Battery – self-discharged to destruction
37:05 Wrap-up – next is full fly-by-wire again, bye
Teardowns youtube.com/playlist?list=PLwq-2MnM58FJPg01ooMBgy_CxDxAem0my
Full Fly-by-Wire Electric Outboard youtube.com/playlist?list=PLwq-2MnM58FKvpYgFXgNCjlKo14L0KI16
#apple #iphone #liion #liionbattery, #lithiumbattery, #lithiumbattery, #teardown #disassembly #disassembling #robertssmorgasbord
