HP41CL newbie question

[Neve]

Update

So far:

23:23:10 Received CORR_FLDB_8MB_EXPORT_REQUEST(0x4F)
23:23:10 Sent CORR_FLDB_8MB_EXPORT_RESPONSE(0x50)
23:23:10 Receiving 2184 2186 2186 1636 = 8192 bytes received
23:23:29 File CFLDB.ROM saved
23:23:29 Report Outdated ROM images [BoardGeneration: third]
23:23:29 Report YLIB-3C.ROM [Page:0x00B ID:YLIB Rev:2017-12-01 YCRC:0x6DAA8777]
23:23:29 Report CLILUPD.ROM [Page:0x064 ID:YUIL Rev:2017-12-01 YCRC:0xC5E62000]
23:23:29 Report MPATHS.ROM [Page:0x0C6 ID:METX Rev:2017-12-01 YCRC:0x2ECCA7B0]
23:23:29 Report FLDB.ROM [Page:0x0DE ID:FLDB Rev:2017-12-02 YCRC:0x12022017]
23:23:29 Report IMDB.ROM [Page:0x0DF ID:IMDB Rev:2017-12-01 YCRC:0x6CD0415C]
23:23:29 Report PWREXT2.ROM [Page:0x181 ID:PWRX Rev:2017-12-01 YCRC:0x130E6ABF]
23:23:29 Report WARPB1.ROM [Page:0x1B8 ID:WARP Rev:2017-12-02 YCRC:0x514CB769]
23:23:29 Report WARPB2.ROM [Page:0x1B9 ID:WARP Rev:2017-12-02 YCRC:0xF862D31E]
23:23:29 Report EPH2018A.ROM [Page:0x21C ID:P18E Rev: YCRC:0xAA054808]
23:23:29 Report EPH2018B.ROM [Page:0x21D ID:P18E Rev: YCRC:0xAA4816ED]
23:23:29 Report MORTAR.ROM [Page:0x221 ID:MRTR Rev: YCRC:0xCBFBFA57]
23:23:29 Report 11 outdated pages, out of 1024 pages, spread over 8 Flash blocks, estimated update time: 00h 25m 34s
23:26:15 Received OPEN_CHANNEL_REQUEST(0x41)
23:26:15 Sent OPEN_CHANNEL_RESPONSE(0x42)
23:27:58 Received PAGE_IMPORT_REQUEST(0x53) [Page:0x00B]
23:27:58 Image YLIB-3C.ROM [Page:0x00B ID:YLIB Rev:2017-12-01 YCRC:0x6DAA8777]
23:27:58 Sending 8192 = 8192 bytes sent
23:31:00 Received PAGE_IMPORT_REQUEST(0x53) [Page:0x064]
23:31:00 Image CLILUPD.ROM [Page:0x064 ID:YUIL Rev:2017-12-01 YCRC:0xC5E62000]
23:31:00 Sending 8192 = 8192 bytes sent
23:34:03 Received PAGE_IMPORT_REQUEST(0x53) [Page:0x0C6]
23:34:03 Image MPATHS.ROM [Page:0x0C6 ID:METX Rev:2017-12-01 YCRC:0x2ECCA7B0]
23:34:03 Sending 8192 = 8192 bytes sent

At first the FLUDP returned "NONEXISTENT", so I tried FLUPD, same result "NONEXISTENT"... Then the calc turned itself off ...!!!
Powered it back on, CMOPEN. And it "seems" to be working... Weird...