I thought this might be helpful to anyone who's concerned about heat with their new iPad. This isn't to rehash the long discussions about whether the iPad gets too hot or not. This is simply to help anybody who doesn't have measuring equipment and wants a better understanding of how hot their iPad gets.
No jailbreaking or anything funky required!
Step 1: Under Settings > General > About > Diagnostics & Usage, ensure this is set to Automatically Send.
Step 2: On this same screen, go to Diagnostic & Usage Data. In that list, you should find a log called log-aggregated-YYYY-MM-DD.plist where the date of that file should be 2 days ago.
Note that if you had the setting in Step 1 originally set to Don't Send, it may take until midnight for your iPad to create the log file. Look for it the next day.
The iPad automatically creates this log file every night and sends it to Apple. It always appears to be for 2 days ago. So you'll have to wait a couple of days to see the readings for any heat you experience on your iPad today.
Step 3: Inside the log file, you'll see temperature readings for the internal sensors of your iPad. Although you may see a few entries, I believe those are just multiple readings, but only one sensor is used on the WiFi model, and two sensors (one on the baseband) on the 4G model.
The entry should look something like this:
<key>com.apple.cltm.Temperature1</key>
<array>
<real>18.52</real>
<real>33.009999999</real>
<real>23.4532211</real>
..
My educated guess is that for each entry like this, the 1st value is the lowest temperature recorded, the 2nd is the highest temperature recorded, and the 3rd is the average or median temperature. All measurements are in Celsius.
Feel free to post your own readings here. In particular, if you feel your iPad is genuinely suffering from excessive heat issues, then giving the community here your temperature readings may help us give advice, or show that your iPad is normal and the perception of high heat is just subjective.
No jailbreaking or anything funky required!
Step 1: Under Settings > General > About > Diagnostics & Usage, ensure this is set to Automatically Send.
Step 2: On this same screen, go to Diagnostic & Usage Data. In that list, you should find a log called log-aggregated-YYYY-MM-DD.plist where the date of that file should be 2 days ago.
Note that if you had the setting in Step 1 originally set to Don't Send, it may take until midnight for your iPad to create the log file. Look for it the next day.
The iPad automatically creates this log file every night and sends it to Apple. It always appears to be for 2 days ago. So you'll have to wait a couple of days to see the readings for any heat you experience on your iPad today.
Step 3: Inside the log file, you'll see temperature readings for the internal sensors of your iPad. Although you may see a few entries, I believe those are just multiple readings, but only one sensor is used on the WiFi model, and two sensors (one on the baseband) on the 4G model.
The entry should look something like this:
<key>com.apple.cltm.Temperature1</key>
<array>
<real>18.52</real>
<real>33.009999999</real>
<real>23.4532211</real>
..
My educated guess is that for each entry like this, the 1st value is the lowest temperature recorded, the 2nd is the highest temperature recorded, and the 3rd is the average or median temperature. All measurements are in Celsius.
Feel free to post your own readings here. In particular, if you feel your iPad is genuinely suffering from excessive heat issues, then giving the community here your temperature readings may help us give advice, or show that your iPad is normal and the perception of high heat is just subjective.
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