Salut davwee,
même problème pour moi en Suisse avec Orange et en France en roaming/itinérance avec Bouygues, SFR ou Orange France. J'ai un S3 depuis la mi-juillet et je n'ai pas remarqué le problème tout de suite.
J'ai pas mal navigué pour voir si d'autres utilisateurs sont affectés et voici ce que j'ai trouvé:
Problem
when data connection is active, sometimes and randomly the phone is switching quickly between the H+ (release 6=HSDPA/HSUPA), H (release 5=HSDPA) and 3G (release 99) “radio protocols” and the result is that data connection is lost (device shows that data is sent through the uplink, but never received through the downlink). This issue does not seem to be bound to the radio signal power as confirmed by other users.
Reasonable explanation (found here: ):
The problem stems from the fact that this phone has 3 forms of data connection, 3G, HSDPA, and HSPA+.
3G is what we have all had since 3/Telstra launch 10 years ago.
HSDPA is the 7.2mbps connections that we got after that.
HSPA+ is the full fledged 42mbps Next G stuff that only Telstra has.
The problem is, when you are just using the phone as "a phone" it idles on a 3G connection to save battery and when you initiate a data connection it flicks on to the higher connection protocols for better speed.
What is supposed to happen when you initiate the data connection is the phone checks for H+ connection, then for H and then finally 3G. For some reason if you arent with Telstra or are in an area without HSPA+ the phone gets hung up for too long attempting to initiate the H+ connection and refuses to drop back to H!
Also, even if it does give up on H+ it then has an issue with falling back to 3G. Resulting in the problem that if it cant get H+ or the tower is too flooded for a H connection you get absolutely nothing until you restart the data mode within the phone, renegotiates with the tower and BAM, you are back in business.
Workarounds
-Switch off the phone and then back on: it works again … until next time the issue occurs (painful). Note that disabling/re-enabling data or enabling/disabling flight mode does not fix the issue. Neither restarting the phone: it really must be switched off.
-Disable “fact dormancy” on the device (seems to work for some complaining subscribers, but did not try it myself):
Note: customer using mobile networks without the “fast dormancy” feature provided/enabled MUST disable fast dormancy it seems
-Enable R99 for data connections (disable Release 5 HSDPA and release 6 HSDPA/HSUPA): , to do so follow this easy step-by-step process:
1. Dial *#197328640#: you enter the hidden phone menu (be careful ;-)
2. Tap menu “DEBUG SCREEN”
3. Tap menu “PHONE CONTROL”
4. Tap menu “NAS CONTROL”
5. Tap menu “RRC(HSPA) CONTROL”
6. Tap menu “CHANGE REVISION”
7. Tap menu “RELEASE R99(HSPA OFF)
8. Switch phone off
9. Wait few seconds
10. Switch phone back on
11. Congratulations: you now have a very slow device (with still the same huge screen ;-)
Les seules solution de contournement qui fonctionnent pour moi sont la 1ère et la 3ème (activer R99 pour les connexions data). La 3ème limite la vitesse maximale en data, mais permet d'économiser de la batterie en évitant que le téléphone essaie sans discontinuer de télécharger des données sans y parvenir en passant d'un protocole réseau à un autre (H+, H, 3G, G).
A noter que j'utilise un compte e-mail exchange pour le boulot, un via POP3 et le dernier via l'app GMail.
Voici la version du software sur mon appareil (il faut composer le *#1234# pour afficher les infos):
AP: I9300XXBLH1
CP: I9300XXLH1
CSC: I9300AUTBLH1
Toutes les mises à jour ont été appliquées à ce jour.
Est-ce que qqn a trouvé une solution ou rencontre le même problème? Il semble que pas tous les utilisateurs soient affectés par ce problème et je commence à sérieusement penser que mon appareil est peut-être défectueux et issue d'une mauvaise série...
Merci d'avance pour vos retours!
